135135451 has 8 divisors (see below), whose sum is σ = 147673008. Its totient is φ = 122640000.

The previous prime is 135135443. The next prime is 135135463. The reversal of 135135451 is 154531531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135135451 - 2³ = 135135443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135135421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3610 + ... + 16831.

It is an arithmetic number, because the mean of its divisors is an integer number (18459126).

Almost surely, 2^135135451 is an apocalyptic number.

135135451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135135451 is a deficient number, since it is larger than the sum of its proper divisors (12537557).

135135451 is a wasteful number, since it uses less digits than its factorization.

135135451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21053.

The product of its digits is 4500, while the sum is 28.

The square root of 135135451 is about 11624.7774602355. Note that the first 3 decimals coincide. The cubic root of 135135451 is about 513.1642955076.

Adding to 135135451 its reverse (154531531), we get a palindrome (289666982).

The spelling of 135135451 in words is "one hundred thirty-five million, one hundred thirty-five thousand, four hundred fifty-one".