139710388 has 12 divisors (see below), whose sum is σ = 245774592. Its totient is φ = 69489080.

The previous prime is 139710379. The next prime is 139710419. The reversal of 139710388 is 883017931.

It is a super-2 number, since 2×139710388² = 39037985030221088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 139710388.

It is a congruent number.

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, 90670 + ... + 92197.

It is an arithmetic number, because the mean of its divisors is an integer number (20481216).

Almost surely, 2^139710388 is an apocalyptic number.

It is an amenable number.

139710388 is a deficient number, since it is larger than the sum of its proper divisors (106064204).

139710388 is a wasteful number, since it uses less digits than its factorization.

139710388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183062 (or 183060 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 139710388 is about 11819.9148897105. The cubic root of 139710388 is about 518.8911133399.

The spelling of 139710388 in words is "one hundred thirty-nine million, seven hundred ten thousand, three hundred eighty-eight".