102156764 has 6 divisors (see below), whose sum is σ = 178774344. Its totient is φ = 51078380.

The previous prime is 102156751. The next prime is 102156773. The reversal of 102156764 is 467651201.

It is a self number, because there is not a number n which added to its sum of digits gives 102156764.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12769592 + ... + 12769599.

It is an arithmetic number, because the mean of its divisors is an integer number (29795724).

Almost surely, 2^102156764 is an apocalyptic number.

It is an amenable number.

102156764 is a deficient number, since it is larger than the sum of its proper divisors (76617580).

102156764 is a wasteful number, since it uses less digits than its factorization.

102156764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25539195 (or 25539193 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 102156764 is about 10107.2629331585. The cubic root of 102156764 is about 467.4721140201.

The spelling of 102156764 in words is "one hundred two million, one hundred fifty-six thousand, seven hundred sixty-four".