139838456 has 16 divisors (see below), whose sum is σ = 262323600. Its totient is φ = 69885504.

The previous prime is 139838441. The next prime is 139838473. The reversal of 139838456 is 654838931.

139838456 is digitally balanced in base 2, 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 139838456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27005 + ... + 31763.

It is an arithmetic number, because the mean of its divisors is an integer number (16395225).

Almost surely, 2^139838456 is an apocalyptic number.

It is an amenable number.

139838456 is a deficient number, since it is larger than the sum of its proper divisors (122485144).

139838456 is a wasteful number, since it uses less digits than its factorization.

139838456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8438 (or 8434 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 139838456 is about 11825.3311158716. The cubic root of 139838456 is about 519.0496151597.

The spelling of 139838456 in words is "one hundred thirty-nine million, eight hundred thirty-eight thousand, four hundred fifty-six".