231970972 has 12 divisors (see below), whose sum is σ = 406204120. Its totient is φ = 115912656.

The previous prime is 231970957. The next prime is 231971009. The reversal of 231970972 is 279079132.

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, 10698 + ... + 24049.

Almost surely, 2^231970972 is an apocalyptic number.

It is an amenable number.

231970972 is a deficient number, since it is larger than the sum of its proper divisors (174233148).

231970972 is a wasteful number, since it uses less digits than its factorization.

231970972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36420 (or 36418 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 231970972 is about 15230.5932911361. The cubic root of 231970972 is about 614.4377367083.

The spelling of 231970972 in words is "two hundred thirty-one million, nine hundred seventy thousand, nine hundred seventy-two".