231162112 has 18 divisors (see below), whose sum is σ = 461421758. Its totient is φ = 115580928.

The previous prime is 231162089. The next prime is 231162149. The reversal of 231162112 is 211261132.

It can be written as a sum of positive squares in only one way, i.e., 162205696 + 68956416 = 12736^2 + 8304^2 .

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 231162112.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 451233 + ... + 451744.

Almost surely, 2^231162112 is an apocalyptic number.

It is an amenable number.

231162112 is a deficient number, since it is larger than the sum of its proper divisors (230259646).

231162112 is an frugal number, since it uses more digits than its factorization.

231162112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902993 (or 902979 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 231162112 is about 15204.0163114882. The cubic root of 231162112 is about 613.7227436762.

The spelling of 231162112 in words is "two hundred thirty-one million, one hundred sixty-two thousand, one hundred twelve".