102031886 has 16 divisors (see below), whose sum is σ = 169793280. Its totient is φ = 45591480.

The previous prime is 102031879. The next prime is 102031907. The reversal of 102031886 is 688130201.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 38006 + ... + 40601.

It is an arithmetic number, because the mean of its divisors is an integer number (10612080).

Almost surely, 2^102031886 is an apocalyptic number.

102031886 is a deficient number, since it is larger than the sum of its proper divisors (67761394).

102031886 is a wasteful number, since it uses less digits than its factorization.

102031886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78679.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 102031886 is about 10101.0834072390. The cubic root of 102031886 is about 467.2815546500.

The spelling of 102031886 in words is "one hundred two million, thirty-one thousand, eight hundred eighty-six".