139513684 has 12 divisors (see below), whose sum is σ = 247240000. Its totient is φ = 68873688.

The previous prime is 139513681. The next prime is 139513697. The reversal of 139513684 is 486315931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139513681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220434 + ... + 221065.

Almost surely, 2^139513684 is an apocalyptic number.

It is an amenable number.

139513684 is a deficient number, since it is larger than the sum of its proper divisors (107726316).

139513684 is a wasteful number, since it uses less digits than its factorization.

139513684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441582 (or 441580 counting only the distinct ones).

The product of its digits is 77760, while the sum is 40.

The square root of 139513684 is about 11811.5910867249. The cubic root of 139513684 is about 518.6474762503.

The spelling of 139513684 in words is "one hundred thirty-nine million, five hundred thirteen thousand, six hundred eighty-four".