139407036 has 12 divisors (see below), whose sum is σ = 325283112. Its totient is φ = 46469008.

The previous prime is 139407017. The next prime is 139407061. The reversal of 139407036 is 630704931.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 139406988 and 139407006.

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, 5808615 + ... + 5808638.

It is an arithmetic number, because the mean of its divisors is an integer number (27106926).

Almost surely, 2^139407036 is an apocalyptic number.

It is an amenable number.

139407036 is an abundant number, since it is smaller than the sum of its proper divisors (185876076).

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

139407036 is a wasteful number, since it uses less digits than its factorization.

139407036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11617260 (or 11617258 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 139407036 is about 11807.0756752043. The cubic root of 139407036 is about 518.5152865500.

It can be divided in two parts, 13 and 9407036, that added together give a palindrome (9407049).

The spelling of 139407036 in words is "one hundred thirty-nine million, four hundred seven thousand, thirty-six".