139703660 has 12 divisors (see below), whose sum is σ = 293377728. Its totient is φ = 55881456.

The previous prime is 139703659. The next prime is 139703719. The reversal of 139703660 is 66307931.

139703660 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×139703660² = 39034225234791200, 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 139703660.

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, 3492572 + ... + 3492611.

It is an arithmetic number, because the mean of its divisors is an integer number (24448144).

Almost surely, 2^139703660 is an apocalyptic number.

139703660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139703660 is an abundant number, since it is smaller than the sum of its proper divisors (153674068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139703660 is a wasteful number, since it uses less digits than its factorization.

139703660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6985192 (or 6985190 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 139703660 is about 11819.6302818658. The cubic root of 139703660 is about 518.8827838341.

The spelling of 139703660 in words is "one hundred thirty-nine million, seven hundred three thousand, six hundred sixty".