102109308 has 24 divisors (see below), whose sum is σ = 272291712. Its totient is φ = 29174064.

The previous prime is 102109279. The next prime is 102109313. The reversal of 102109308 is 803901201.

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, 607710 + ... + 607877.

It is an arithmetic number, because the mean of its divisors is an integer number (11345488).

Almost surely, 2^102109308 is an apocalyptic number.

It is an amenable number.

102109308 is an abundant number, since it is smaller than the sum of its proper divisors (170182404).

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

102109308 is a wasteful number, since it uses less digits than its factorization.

102109308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215601 (or 1215599 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 102109308 is about 10104.9150417012. The cubic root of 102109308 is about 467.3997161620.

The spelling of 102109308 in words is "one hundred two million, one hundred nine thousand, three hundred eight".