139474938 has 16 divisors (see below), whose sum is σ = 283678560. Its totient is φ = 45703536.

The previous prime is 139474931. The next prime is 139474939. The reversal of 139474938 is 839474931.

It is a happy number.

139474938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (139474931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196645 + ... + 197352.

It is an arithmetic number, because the mean of its divisors is an integer number (17729910).

Almost surely, 2^139474938 is an apocalyptic number.

139474938 is an abundant number, since it is smaller than the sum of its proper divisors (144203622).

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

139474938 is a wasteful number, since it uses less digits than its factorization.

139474938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394061.

The product of its digits is 653184, while the sum is 48.

The square root of 139474938 is about 11809.9508043006. The cubic root of 139474938 is about 518.5994585573.

The spelling of 139474938 in words is "one hundred thirty-nine million, four hundred seventy-four thousand, nine hundred thirty-eight".