139356938 has 16 divisors (see below), whose sum is σ = 242948160. Its totient is φ = 58711776.

The previous prime is 139356929. The next prime is 139356941. The reversal of 139356938 is 839653931.

It is a super-3 number, since 3×139356938³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139356892 and 139356901.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83531 + ... + 85182.

It is an arithmetic number, because the mean of its divisors is an integer number (15184260).

Almost surely, 2^139356938 is an apocalyptic number.

139356938 is a deficient number, since it is larger than the sum of its proper divisors (103591222).

139356938 is a wasteful number, since it uses less digits than its factorization.

139356938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168781.

The product of its digits is 524880, while the sum is 47.

The square root of 139356938 is about 11804.9539600966. The cubic root of 139356938 is about 518.4531670380.

The spelling of 139356938 in words is "one hundred thirty-nine million, three hundred fifty-six thousand, nine hundred thirty-eight".