231056516 has 24 divisors (see below), whose sum is σ = 418172160. Its totient is φ = 111592800.

The previous prime is 231056513. The next prime is 231056519. The reversal of 231056516 is 615650132.

It is an interprime number because it is at equal distance from previous prime (231056513) and next prime (231056519).

It is a super-2 number, since 2×231056516² = 106774227172116512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231056513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80555 + ... + 83373.

It is an arithmetic number, because the mean of its divisors is an integer number (17423840).

Almost surely, 2^231056516 is an apocalyptic number.

It is an amenable number.

231056516 is a deficient number, since it is larger than the sum of its proper divisors (187115644).

231056516 is a wasteful number, since it uses less digits than its factorization.

231056516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515 (or 3513 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 231056516 is about 15200.5432797647. The cubic root of 231056516 is about 613.6292789113.

The spelling of 231056516 in words is "two hundred thirty-one million, fifty-six thousand, five hundred sixteen".