139939132 has 6 divisors (see below), whose sum is σ = 244893488. Its totient is φ = 69969564.

The previous prime is 139939073. The next prime is 139939159. The reversal of 139939132 is 231939931.

139939132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17492388 + ... + 17492395.

Almost surely, 2^139939132 is an apocalyptic number.

It is an amenable number.

139939132 is a deficient number, since it is larger than the sum of its proper divisors (104954356).

139939132 is a wasteful number, since it uses less digits than its factorization.

139939132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34984787 (or 34984785 counting only the distinct ones).

The product of its digits is 39366, while the sum is 40.

The square root of 139939132 is about 11829.5871441061. The cubic root of 139939132 is about 519.1741476741.

The spelling of 139939132 in words is "one hundred thirty-nine million, nine hundred thirty-nine thousand, one hundred thirty-two".