231554012 has 12 divisors (see below), whose sum is σ = 407257200. Its totient is φ = 115194816.

The previous prime is 231554003. The next prime is 231554027. The reversal of 231554012 is 210455132.

It is a super-2 number, since 2×231554012² = 107234520946592288, which contains 22 as substring.

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, 144653 + ... + 146244.

It is an arithmetic number, because the mean of its divisors is an integer number (33938100).

Almost surely, 2^231554012 is an apocalyptic number.

It is an amenable number.

231554012 is a deficient number, since it is larger than the sum of its proper divisors (175703188).

231554012 is a wasteful number, since it uses less digits than its factorization.

231554012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291100 (or 291098 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 231554012 is about 15216.8988956357. The cubic root of 231554012 is about 614.0693722082.

The spelling of 231554012 in words is "two hundred thirty-one million, five hundred fifty-four thousand, twelve".