134742528 has 210 divisors, whose sum is σ = 426010959. Its totient is φ = 42550272.

The previous prime is 134742499. The next prime is 134742541. The reversal of 134742528 is 825247431.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 67371264 + 67371264 = 8208^2 + 8208^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=8208.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (53760) is a multiple of the sum of its prime divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 134742492 and 134742501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 7091703 + ... + 7091721.

Almost surely, 2^134742528 is an apocalyptic number.

134742528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134742528

134742528 is an abundant number, since it is smaller than the sum of its proper divisors (291268431).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134742528 is an frugal number, since it uses more digits than its factorization.

134742528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 24 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 134742528 is about 11607.8649199584. The cubic root of 134742528 is about 512.6664498409. Note that the first 3 decimals are identical.

Adding to 134742528 its reverse (825247431), we get a palindrome (959989959).

The spelling of 134742528 in words is "one hundred thirty-four million, seven hundred forty-two thousand, five hundred twenty-eight".