231572116 has 12 divisors (see below), whose sum is σ = 405565888. Its totient is φ = 115696152.

The previous prime is 231572083. The next prime is 231572123. The reversal of 231572116 is 611275132.

It is a happy number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 16506 + ... + 27121.

Almost surely, 2^231572116 is an apocalyptic number.

It is an amenable number.

231572116 is a deficient number, since it is larger than the sum of its proper divisors (173993772).

231572116 is a wasteful number, since it uses less digits than its factorization.

231572116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44958 (or 44956 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 231572116 is about 15217.4937489719. The cubic root of 231572116 is about 614.0853754179.

The spelling of 231572116 in words is "two hundred thirty-one million, five hundred seventy-two thousand, one hundred sixteen".