188913902 has 12 divisors (see below), whose sum is σ = 286350840. Its totient is φ = 93473856.

The previous prime is 188913899. The next prime is 188913913. The reversal of 188913902 is 209319881.

188913902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 188913902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13799 + ... + 23837.

It is an arithmetic number, because the mean of its divisors is an integer number (23862570).

Almost surely, 2^188913902 is an apocalyptic number.

188913902 is a deficient number, since it is larger than the sum of its proper divisors (97436938).

188913902 is an equidigital number, since it uses as much as digits as its factorization.

188913902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10235 (or 10138 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 188913902 is about 13744.5953741825. The cubic root of 188913902 is about 573.7921989774.

The spelling of 188913902 in words is "one hundred eighty-eight million, nine hundred thirteen thousand, nine hundred two".