139357369636 has 9 divisors (see below), whose sum is σ = 243876703441. Its totient is φ = 69678311512.

The previous prime is 139357369607. The next prime is 139357369663. The reversal of 139357369636 is 636963753931.

The square root of 139357369636 is 373306.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 33565904100 + 105791465536 = 183210^2 + 325256^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 653286 + ... + 839938.

Almost surely, 2^139357369636 is an apocalyptic number.

139357369636 is the 373306-th square number.

It is an amenable number.

139357369636 is a deficient number, since it is larger than the sum of its proper divisors (104519333805).

139357369636 is an frugal number, since it uses more digits than its factorization.

139357369636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373310 (or 186655 counting only the distinct ones).

The product of its digits is 49601160, while the sum is 61.

The spelling of 139357369636 in words is "one hundred thirty-nine billion, three hundred fifty-seven million, three hundred sixty-nine thousand, six hundred thirty-six".