231266156 has 12 divisors (see below), whose sum is σ = 441508200. Its totient is φ = 105120960.

The previous prime is 231266143. The next prime is 231266159. The reversal of 231266156 is 651662132.

It is a super-2 number, since 2×231266156² = 106968069822032672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231266159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2627981 + ... + 2628068.

It is an arithmetic number, because the mean of its divisors is an integer number (36792350).

Almost surely, 2^231266156 is an apocalyptic number.

It is an amenable number.

231266156 is a deficient number, since it is larger than the sum of its proper divisors (210242044).

231266156 is a wasteful number, since it uses less digits than its factorization.

231266156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5256064 (or 5256062 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 231266156 is about 15207.4375224756. The cubic root of 231266156 is about 613.8148069053.

The spelling of 231266156 in words is "two hundred thirty-one million, two hundred sixty-six thousand, one hundred fifty-six".