231577052 has 12 divisors (see below), whose sum is σ = 463154160. Its totient is φ = 99247296.

The previous prime is 231577039. The next prime is 231577081. The reversal of 231577052 is 250775132.

231577052 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4135277 + ... + 4135332.

It is an arithmetic number, because the mean of its divisors is an integer number (38596180).

Almost surely, 2^231577052 is an apocalyptic number.

It is an amenable number.

231577052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

231577052 is a wasteful number, since it uses less digits than its factorization.

231577052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8270620 (or 8270618 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 231577052 is about 15217.6559298730. The cubic root of 231577052 is about 614.0897384991.

The spelling of 231577052 in words is "two hundred thirty-one million, five hundred seventy-seven thousand, fifty-two".