231966612 has 24 divisors (see below), whose sum is σ = 601395200. Its totient is φ = 77322168.

The previous prime is 231966601. The next prime is 231966629. The reversal of 231966612 is 216669132.

It is a happy number.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1073812 + ... + 1074027.

Almost surely, 2^231966612 is an apocalyptic number.

It is an amenable number.

231966612 is an abundant number, since it is smaller than the sum of its proper divisors (369428588).

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

231966612 is a wasteful number, since it uses less digits than its factorization.

231966612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147852 (or 2147844 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 231966612 is about 15230.4501574970. The cubic root of 231966612 is about 614.4338871385.

The spelling of 231966612 in words is "two hundred thirty-one million, nine hundred sixty-six thousand, six hundred twelve".