139380936 has 16 divisors (see below), whose sum is σ = 348452400. Its totient is φ = 46460304.

The previous prime is 139380911. The next prime is 139380947. The reversal of 139380936 is 639083931.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2903746 + ... + 2903793.

It is an arithmetic number, because the mean of its divisors is an integer number (21778275).

Almost surely, 2^139380936 is an apocalyptic number.

It is an amenable number.

139380936 is an abundant number, since it is smaller than the sum of its proper divisors (209071464).

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

139380936 is a wasteful number, since it uses less digits than its factorization.

139380936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5807548 (or 5807544 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 139380936 is about 11805.9703540200. The cubic root of 139380936 is about 518.4829254535.

The spelling of 139380936 in words is "one hundred thirty-nine million, three hundred eighty thousand, nine hundred thirty-six".