139675668 has 24 divisors (see below), whose sum is σ = 355538400. Its totient is φ = 42325920.

The previous prime is 139675667. The next prime is 139675691. The reversal of 139675668 is 866576931.

It is a self number, because there is not a number n which added to its sum of digits gives 139675668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139675661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 528943 + ... + 529206.

It is an arithmetic number, because the mean of its divisors is an integer number (14814100).

Almost surely, 2^139675668 is an apocalyptic number.

It is an amenable number.

139675668 is an abundant number, since it is smaller than the sum of its proper divisors (215862732).

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

139675668 is a wasteful number, since it uses less digits than its factorization.

139675668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058167 (or 1058165 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The square root of 139675668 is about 11818.4460907515. The cubic root of 139675668 is about 518.8481258610.

The spelling of 139675668 in words is "one hundred thirty-nine million, six hundred seventy-five thousand, six hundred sixty-eight".