102156884 has 12 divisors (see below), whose sum is σ = 178889844. Its totient is φ = 51045504.

The previous prime is 102156881. The next prime is 102156931. The reversal of 102156884 is 488651201.

It can be written as a sum of positive squares in 2 ways, for example, as 67699984 + 34456900 = 8228^2 + 5870^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102156881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437 + ... + 14300.

It is an arithmetic number, because the mean of its divisors is an integer number (14907487).

Almost surely, 2^102156884 is an apocalyptic number.

It is an amenable number.

102156884 is a deficient number, since it is larger than the sum of its proper divisors (76732960).

102156884 is a wasteful number, since it uses less digits than its factorization.

102156884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16474 (or 16472 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 102156884 is about 10107.2688694820. The cubic root of 102156884 is about 467.4722970611.

The spelling of 102156884 in words is "one hundred two million, one hundred fifty-six thousand, eight hundred eighty-four".