189515072 has 28 divisors (see below), whose sum is σ = 376671840. Its totient is φ = 94605696.

The previous prime is 189515057. The next prime is 189515089. The reversal of 189515072 is 270515981.

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, 45293 + ... + 49299.

Almost surely, 2^189515072 is an apocalyptic number.

It is an amenable number.

189515072 is a deficient number, since it is larger than the sum of its proper divisors (187156768).

189515072 is an equidigital number, since it uses as much as digits as its factorization.

189515072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4758 (or 4748 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 38.

The square root of 189515072 is about 13766.4473267434. The cubic root of 189515072 is about 574.4002032882.

The spelling of 189515072 in words is "one hundred eighty-nine million, five hundred fifteen thousand, seventy-two".