139137412 has 12 divisors (see below), whose sum is σ = 243721296. Its totient is φ = 69502760.

The previous prime is 139137403. The next prime is 139137433. The reversal of 139137412 is 214731931.

139137412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11578 + ... + 20305.

It is an arithmetic number, because the mean of its divisors is an integer number (20310108).

Almost surely, 2^139137412 is an apocalyptic number.

It is an amenable number.

139137412 is a deficient number, since it is larger than the sum of its proper divisors (104583884).

139137412 is a wasteful number, since it uses less digits than its factorization.

139137412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32978 (or 32976 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 139137412 is about 11795.6522498758. The cubic root of 139137412 is about 518.1807879066.

The spelling of 139137412 in words is "one hundred thirty-nine million, one hundred thirty-seven thousand, four hundred twelve".