102109810 has 16 divisors (see below), whose sum is σ = 200506752. Its totient is φ = 37130800.

The previous prime is 102109807. The next prime is 102109829. The reversal of 102109810 is 18901201.

It is a super-2 number, since 2×102109810² = 20852826596472200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 464026 + ... + 464245.

It is an arithmetic number, because the mean of its divisors is an integer number (12531672).

Almost surely, 2^102109810 is an apocalyptic number.

102109810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102109810 is a deficient number, since it is larger than the sum of its proper divisors (98396942).

102109810 is a wasteful number, since it uses less digits than its factorization.

102109810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928289.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 102109810 is about 10104.9398810681. The cubic root of 102109810 is about 467.4004821198.

The spelling of 102109810 in words is "one hundred two million, one hundred nine thousand, eight hundred ten".