139102320 has 80 divisors (see below), whose sum is σ = 492825600. Its totient is φ = 31794432.

The previous prime is 139102319. The next prime is 139102339. The reversal of 139102320 is 23201931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 39720 + ... + 43079.

It is an arithmetic number, because the mean of its divisors is an integer number (6160320).

Almost surely, 2^139102320 is an apocalyptic number.

139102320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139102320 is an abundant number, since it is smaller than the sum of its proper divisors (353723280).

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

139102320 is a wasteful number, since it uses less digits than its factorization.

139102320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82822 (or 82816 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 139102320 is about 11794.1646588472. The cubic root of 139102320 is about 518.1372205945.

The spelling of 139102320 in words is "one hundred thirty-nine million, one hundred two thousand, three hundred twenty".