189315192 has 32 divisors (see below), whose sum is σ = 516314880. Its totient is φ = 57368160.

The previous prime is 189315187. The next prime is 189315223. The reversal of 189315192 is 291513981.

It is a self number, because there is not a number n which added to its sum of digits gives 189315192.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358288 + ... + 358815.

It is an arithmetic number, because the mean of its divisors is an integer number (16134840).

Almost surely, 2^189315192 is an apocalyptic number.

189315192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

189315192 is an abundant number, since it is smaller than the sum of its proper divisors (326999688).

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

189315192 is a wasteful number, since it uses less digits than its factorization.

189315192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717123 (or 717119 counting only the distinct ones).

The product of its digits is 19440, while the sum is 39.

The square root of 189315192 is about 13759.1857317212. The cubic root of 189315192 is about 574.1981938499.

The spelling of 189315192 in words is "one hundred eighty-nine million, three hundred fifteen thousand, one hundred ninety-two".