134133540 has 96 divisors (see below), whose sum is σ = 399745920. Its totient is φ = 33509376.

The previous prime is 134133523. The next prime is 134133541. The reversal of 134133540 is 45331431.

It is a happy number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 134133540.

It is not an unprimeable number, because it can be changed into a prime (134133541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109974 + ... + 111186.

It is an arithmetic number, because the mean of its divisors is an integer number (4164020).

Almost surely, 2^134133540 is an apocalyptic number.

134133540 is a gapful number since it is divisible by the number (10) 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 134133540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199872960).

134133540 is an abundant number, since it is smaller than the sum of its proper divisors (265612380).

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

134133540 is a wasteful number, since it uses less digits than its factorization.

134133540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341 (or 1339 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 134133540 is about 11581.6035159213. The cubic root of 134133540 is about 511.8929270319.

Adding to 134133540 its reverse (45331431), we get a palindrome (179464971).

The spelling of 134133540 in words is "one hundred thirty-four million, one hundred thirty-three thousand, five hundred forty".