102815883 has 6 divisors (see below), whose sum is σ = 148511844. Its totient is φ = 68543916.

The previous prime is 102815863. The next prime is 102815899. The reversal of 102815883 is 388518201.

It is not a de Polignac number, because 102815883 - 2⁵ = 102815851 is a prime.

It is a super-2 number, since 2×102815883² = 21142211594139378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102815833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5711985 + ... + 5712002.

It is an arithmetic number, because the mean of its divisors is an integer number (24751974).

Almost surely, 2^102815883 is an apocalyptic number.

102815883 is a deficient number, since it is larger than the sum of its proper divisors (45695961).

102815883 is a wasteful number, since it uses less digits than its factorization.

102815883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11423993 (or 11423990 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 102815883 is about 10139.8167143198. The cubic root of 102815883 is about 468.4753416053.

The spelling of 102815883 in words is "one hundred two million, eight hundred fifteen thousand, eight hundred eighty-three".