189713256 has 16 divisors (see below), whose sum is σ = 474283200. Its totient is φ = 63237744.

The previous prime is 189713231. The next prime is 189713263. The reversal of 189713256 is 652317981.

It is a super-2 number, since 2×189713256² = 71982239004243072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) 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, 3952336 + ... + 3952383.

It is an arithmetic number, because the mean of its divisors is an integer number (29642700).

Almost surely, 2^189713256 is an apocalyptic number.

It is an amenable number.

189713256 is an abundant number, since it is smaller than the sum of its proper divisors (284569944).

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

189713256 is a wasteful number, since it uses less digits than its factorization.

189713256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7904728 (or 7904724 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 189713256 is about 13773.6435266780. The cubic root of 189713256 is about 574.6003584709.

The spelling of 189713256 in words is "one hundred eighty-nine million, seven hundred thirteen thousand, two hundred fifty-six".