139873308 has 12 divisors (see below), whose sum is σ = 326371080. Its totient is φ = 46624432.

The previous prime is 139873291. The next prime is 139873309. The reversal of 139873308 is 803378931.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 139873308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139873309) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5828043 + ... + 5828066.

It is an arithmetic number, because the mean of its divisors is an integer number (27197590).

Almost surely, 2^139873308 is an apocalyptic number.

It is an amenable number.

139873308 is an abundant number, since it is smaller than the sum of its proper divisors (186497772).

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

139873308 is a wasteful number, since it uses less digits than its factorization.

139873308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11656116 (or 11656114 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 139873308 is about 11826.8046403075. The cubic root of 139873308 is about 519.0927325659.

The spelling of 139873308 in words is "one hundred thirty-nine million, eight hundred seventy-three thousand, three hundred eight".