153135520 has 24 divisors (see below), whose sum is σ = 361783044. Its totient is φ = 61254144.

The previous prime is 153135509. The next prime is 153135527. The reversal of 153135520 is 25531351.

It can be written as a sum of positive squares in 2 ways, for example, as 151486864 + 1648656 = 12308^2 + 1284^2 .

It is not an unprimeable number, because it can be changed into a prime (153135527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478389 + ... + 478708.

Almost surely, 2^153135520 is an apocalyptic number.

153135520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153135520 is an abundant number, since it is smaller than the sum of its proper divisors (208647524).

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

153135520 is an equidigital number, since it uses as much as digits as its factorization.

153135520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957112 (or 957104 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 153135520 is about 12374.7937356547. The cubic root of 153135520 is about 535.0059917226.

Adding to 153135520 its reverse (25531351), we get a palindrome (178666871).

The spelling of 153135520 in words is "one hundred fifty-three million, one hundred thirty-five thousand, five hundred twenty".