139390504 has 32 divisors (see below), whose sum is σ = 287958240. Its totient is φ = 62728000.

The previous prime is 139390499. The next prime is 139390519. The reversal of 139390504 is 405093931.

139390504 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 139390504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1047 + ... + 16729.

It is an arithmetic number, because the mean of its divisors is an integer number (8998695).

Almost surely, 2^139390504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139390504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143979120).

139390504 is an abundant number, since it is smaller than the sum of its proper divisors (148567736).

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

139390504 is a wasteful number, since it uses less digits than its factorization.

139390504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15801 (or 15797 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 139390504 is about 11806.3755657695. The cubic root of 139390504 is about 518.4947891781.

The spelling of 139390504 in words is "one hundred thirty-nine million, three hundred ninety thousand, five hundred four".