231255684 has 54 divisors (see below), whose sum is σ = 642548270. Its totient is φ = 70076160.

The previous prime is 231255671. The next prime is 231255719. The reversal of 231255684 is 486552132.

231255684 is a `hidden beast` number, since 23 + 1 + 2 + 556 + 84 = 666.

It can be written as a sum of positive squares in only one way, i.e., 145878084 + 85377600 = 12078^2 + 9240^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 22189 + ... + 30900.

Almost surely, 2^231255684 is an apocalyptic number.

It is an amenable number.

231255684 is an abundant number, since it is smaller than the sum of its proper divisors (411292586).

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

231255684 is a wasteful number, since it uses less digits than its factorization.

231255684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53121 (or 53105 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 231255684 is about 15207.0932133659. The cubic root of 231255684 is about 613.8055420165.

The spelling of 231255684 in words is "two hundred thirty-one million, two hundred fifty-five thousand, six hundred eighty-four".