102974188 has 24 divisors (see below), whose sum is σ = 187689600. Its totient is φ = 49378560.

The previous prime is 102974173. The next prime is 102974189. The reversal of 102974188 is 881479201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102974188.

It is not an unprimeable number, because it can be changed into a prime (102974189) 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, 10338 + ... + 17686.

It is an arithmetic number, because the mean of its divisors is an integer number (7820400).

Almost surely, 2^102974188 is an apocalyptic number.

It is an amenable number.

102974188 is a deficient number, since it is larger than the sum of its proper divisors (84715412).

102974188 is a wasteful number, since it uses less digits than its factorization.

102974188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7497 (or 7495 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 102974188 is about 10147.6198194453. The cubic root of 102974188 is about 468.7156545384.

The spelling of 102974188 in words is "one hundred two million, nine hundred seventy-four thousand, one hundred eighty-eight".