139596129 has 20 divisors (see below), whose sum is σ = 220801284. Its totient is φ = 87588864.

The previous prime is 139596113. The next prime is 139596143. The reversal of 139596129 is 921695931.

It is a happy number.

139596129 is a `hidden beast` number, since 1 + 39 + 596 + 1 + 29 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 121550625 + 18045504 = 11025^2 + 4248^2 .

It is not a de Polignac number, because 139596129 - 2⁴ = 139596113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139596109) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 49312 + ... + 52065.

Almost surely, 2^139596129 is an apocalyptic number.

It is an amenable number.

139596129 is a deficient number, since it is larger than the sum of its proper divisors (81205155).

139596129 is a wasteful number, since it uses less digits than its factorization.

139596129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101406 (or 101397 counting only the distinct ones).

The product of its digits is 131220, while the sum is 45.

The square root of 139596129 is about 11815.0805752648. The cubic root of 139596129 is about 518.7496202833.

The spelling of 139596129 in words is "one hundred thirty-nine million, five hundred ninety-six thousand, one hundred twenty-nine".