231729164 has 12 divisors (see below), whose sum is σ = 405725544. Its totient is φ = 115807584.

The previous prime is 231729143. The next prime is 231729181. The reversal of 231729164 is 461927132.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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, 4337 + ... + 21960.

It is an arithmetic number, because the mean of its divisors is an integer number (33810462).

Almost surely, 2^231729164 is an apocalyptic number.

It is an amenable number.

231729164 is a deficient number, since it is larger than the sum of its proper divisors (173996380).

231729164 is a wasteful number, since it uses less digits than its factorization.

231729164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28504 (or 28502 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 231729164 is about 15222.6529882278. The cubic root of 231729164 is about 614.2241645612.

The spelling of 231729164 in words is "two hundred thirty-one million, seven hundred twenty-nine thousand, one hundred sixty-four".