139536940 has 24 divisors (see below), whose sum is σ = 300176352. Its totient is φ = 54453120.

The previous prime is 139536919. The next prime is 139536977. The reversal of 139536940 is 49635931.

It is a junction number, because it is equal to n+sod(n) for n = 139536893 and 139536902.

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, 84264 + ... + 85903.

It is an arithmetic number, because the mean of its divisors is an integer number (12507348).

Almost surely, 2^139536940 is an apocalyptic number.

139536940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139536940 is an abundant number, since it is smaller than the sum of its proper divisors (160639412).

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

139536940 is a wasteful number, since it uses less digits than its factorization.

139536940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170217 (or 170215 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 139536940 is about 11812.5755024042. The cubic root of 139536940 is about 518.6762930068.

The spelling of 139536940 in words is "one hundred thirty-nine million, five hundred thirty-six thousand, nine hundred forty".