189579136 has 32 divisors (see below), whose sum is σ = 389868480. Its totient is φ = 91729920.

The previous prime is 189579101. The next prime is 189579149. The reversal of 189579136 is 631975981.

189579136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 189579136.

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, 19921 + ... + 27856.

It is an arithmetic number, because the mean of its divisors is an integer number (12183390).

Almost surely, 2^189579136 is an apocalyptic number.

189579136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

189579136 is an abundant number, since it is smaller than the sum of its proper divisors (200289344).

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

189579136 is an equidigital number, since it uses as much as digits as its factorization.

189579136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47822 (or 47810 counting only the distinct ones).

The product of its digits is 408240, while the sum is 49.

The square root of 189579136 is about 13768.7739468698. The cubic root of 189579136 is about 574.4649197398.

The spelling of 189579136 in words is "one hundred eighty-nine million, five hundred seventy-nine thousand, one hundred thirty-six".