231536052 has 72 divisors (see below), whose sum is σ = 672104160. Its totient is φ = 66467520.

The previous prime is 231536051. The next prime is 231536083. The reversal of 231536052 is 250635132.

231536052 is a `hidden beast` number, since 2 + 3 + 1 + 53 + 605 + 2 = 666.

It is a super-3 number, since 3×231536052³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231536051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7863 + ... + 22910.

It is an arithmetic number, because the mean of its divisors is an integer number (9334780).

Almost surely, 2^231536052 is an apocalyptic number.

231536052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

231536052 is an abundant number, since it is smaller than the sum of its proper divisors (440568108).

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

231536052 is a wasteful number, since it uses less digits than its factorization.

231536052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30813 (or 30808 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 231536052 is about 15216.3087508108. The cubic root of 231536052 is about 614.0534954646.

The spelling of 231536052 in words is "two hundred thirty-one million, five hundred thirty-six thousand, fifty-two".