189313256 has 32 divisors (see below), whose sum is σ = 393590880. Its totient is φ = 84638400.

The previous prime is 189313211. The next prime is 189313259. The reversal of 189313256 is 652313981.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (189313259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12266 + ... + 23001.

It is an arithmetic number, because the mean of its divisors is an integer number (12299715).

Almost surely, 2^189313256 is an apocalyptic number.

It is an amenable number.

189313256 is an abundant number, since it is smaller than the sum of its proper divisors (204277624).

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

189313256 is a wasteful number, since it uses less digits than its factorization.

189313256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35345 (or 35341 counting only the distinct ones).

The product of its digits is 38880, while the sum is 38.

The square root of 189313256 is about 13759.1153785409. The cubic root of 189313256 is about 574.1962365295.

The spelling of 189313256 in words is "one hundred eighty-nine million, three hundred thirteen thousand, two hundred fifty-six".