102636972 has 36 divisors (see below), whose sum is σ = 259773696. Its totient is φ = 34168800.

The previous prime is 102636959. The next prime is 102636997. The reversal of 102636972 is 279636201.

102636972 is a `hidden beast` number, since 10 + 2 + 636 + 9 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40198 + ... + 42674.

It is an arithmetic number, because the mean of its divisors is an integer number (7215936).

Almost surely, 2^102636972 is an apocalyptic number.

102636972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102636972 is an abundant number, since it is smaller than the sum of its proper divisors (157136724).

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

102636972 is a wasteful number, since it uses less digits than its factorization.

102636972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638 (or 3633 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 102636972 is about 10130.9906721900. The cubic root of 102636972 is about 468.2034508803.

The spelling of 102636972 in words is "one hundred two million, six hundred thirty-six thousand, nine hundred seventy-two".