139368924 has 60 divisors (see below), whose sum is σ = 385784784. Its totient is φ = 43721856.

The previous prime is 139368917. The next prime is 139368947. The reversal of 139368924 is 429863931.

It is a happy number.

139368924 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 139368924.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7144 + ... + 18159.

Almost surely, 2^139368924 is an apocalyptic number.

It is an amenable number.

139368924 is an abundant number, since it is smaller than the sum of its proper divisors (246415860).

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

139368924 is a wasteful number, since it uses less digits than its factorization.

139368924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25336 (or 25325 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 139368924 is about 11805.4616174040. The cubic root of 139368924 is about 518.4680305523.

The spelling of 139368924 in words is "one hundred thirty-nine million, three hundred sixty-eight thousand, nine hundred twenty-four".