231954912 has 72 divisors (see below), whose sum is σ = 753860016. Its totient is φ = 66272256.

The previous prime is 231954889. The next prime is 231954913. The reversal of 231954912 is 219459132.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231954913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55513 + ... + 59544.

It is an arithmetic number, because the mean of its divisors is an integer number (10470278).

Almost surely, 2^231954912 is an apocalyptic number.

It is an amenable number.

231954912 is an abundant number, since it is smaller than the sum of its proper divisors (521905104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231954912 is a wasteful number, since it uses less digits than its factorization.

231954912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115080 (or 115069 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 231954912 is about 15230.0660536979. The cubic root of 231954912 is about 614.4235566326.

The spelling of 231954912 in words is "two hundred thirty-one million, nine hundred fifty-four thousand, nine hundred twelve".