765135252 has 72 divisors (see below), whose sum is σ = 2340426816. Its totient is φ = 205749504.

The previous prime is 765135221. The next prime is 765135253. The reversal of 765135252 is 252531567.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (765135253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85018 + ... + 93585.

It is an arithmetic number, because the mean of its divisors is an integer number (32505928).

Almost surely, 2^765135252 is an apocalyptic number.

It is an amenable number.

765135252 is an abundant number, since it is smaller than the sum of its proper divisors (1575291564).

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

765135252 is a wasteful number, since it uses less digits than its factorization.

765135252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178637 (or 178632 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 765135252 is about 27661.0782870083. The cubic root of 765135252 is about 914.6313232973.

The spelling of 765135252 in words is "seven hundred sixty-five million, one hundred thirty-five thousand, two hundred fifty-two".