139607668 has 12 divisors (see below), whose sum is σ = 257172160. Its totient is φ = 66129912.

The previous prime is 139607647. The next prime is 139607669. The reversal of 139607668 is 866706931.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139607669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918396 + ... + 918547.

Almost surely, 2^139607668 is an apocalyptic number.

It is an amenable number.

139607668 is a deficient number, since it is larger than the sum of its proper divisors (117564492).

139607668 is a wasteful number, since it uses less digits than its factorization.

139607668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836966 (or 1836964 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 139607668 is about 11815.5688817763. The cubic root of 139607668 is about 518.7639131508.

The spelling of 139607668 in words is "one hundred thirty-nine million, six hundred seven thousand, six hundred sixty-eight".