231506232 has 16 divisors (see below), whose sum is σ = 578765640. Its totient is φ = 77168736.

The previous prime is 231506227. The next prime is 231506257. The reversal of 231506232 is 232605132.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 9646093 = 231506232 / (2 + 3 + 1 + 5 + 0 + 6 + 2 + 3 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4823023 + ... + 4823070.

Almost surely, 2^231506232 is an apocalyptic number.

It is an amenable number.

231506232 is an abundant number, since it is smaller than the sum of its proper divisors (347259408).

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

231506232 is a wasteful number, since it uses less digits than its factorization.

231506232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9646102 (or 9646098 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 231506232 is about 15215.3288495517. The cubic root of 231506232 is about 614.0271325991.

The spelling of 231506232 in words is "two hundred thirty-one million, five hundred six thousand, two hundred thirty-two".