102909912 has 64 divisors (see below), whose sum is σ = 306823680. Its totient is φ = 28123392.

The previous prime is 102909907. The next prime is 102909949. The reversal of 102909912 is 219909201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9453 + ... + 17180.

It is an arithmetic number, because the mean of its divisors is an integer number (4794120).

Almost surely, 2^102909912 is an apocalyptic number.

102909912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102909912 is an abundant number, since it is smaller than the sum of its proper divisors (203913768).

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

102909912 is a wasteful number, since it uses less digits than its factorization.

102909912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26672 (or 26668 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 102909912 is about 10144.4522769837. The cubic root of 102909912 is about 468.6181108769.

It can be divided in two parts, 10290 and 9912, that added together give a palindrome (20202).

The spelling of 102909912 in words is "one hundred two million, nine hundred nine thousand, nine hundred twelve".