139718708 has 12 divisors (see below), whose sum is σ = 245075460. Its totient is φ = 69697152.

The previous prime is 139718687. The next prime is 139718743. The reversal of 139718708 is 807817931.

It can be written as a sum of positive squares in 2 ways, for example, as 19114384 + 120604324 = 4372^2 + 10982^2 .

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, 38603 + ... + 42066.

It is an arithmetic number, because the mean of its divisors is an integer number (20422955).

Almost surely, 2^139718708 is an apocalyptic number.

It is an amenable number.

139718708 is a deficient number, since it is larger than the sum of its proper divisors (105356752).

139718708 is a wasteful number, since it uses less digits than its factorization.

139718708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81106 (or 81104 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 44.

The square root of 139718708 is about 11820.2668328596. The cubic root of 139718708 is about 518.9014134291.

The spelling of 139718708 in words is "one hundred thirty-nine million, seven hundred eighteen thousand, seven hundred eight".