139071936 has 56 divisors (see below), whose sum is σ = 380664720. Its totient is φ = 44756992.

The previous prime is 139071899. The next prime is 139071941. The reversal of 139071936 is 639170931.

It is a junction number, because it is equal to n+sod(n) for n = 139071894 and 139071903.

It is a congruent number.

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, 6921 + ... + 18056.

Almost surely, 2^139071936 is an apocalyptic number.

139071936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

139071936 is an abundant number, since it is smaller than the sum of its proper divisors (241592784).

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

139071936 is a wasteful number, since it uses less digits than its factorization.

139071936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25021 (or 25011 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 139071936 is about 11792.8764938839. The cubic root of 139071936 is about 518.0994924250.

The spelling of 139071936 in words is "one hundred thirty-nine million, seventy-one thousand, nine hundred thirty-six".