139845928 has 16 divisors (see below), whose sum is σ = 276012000. Its totient is φ = 66242736.

The previous prime is 139845919. The next prime is 139845973. The reversal of 139845928 is 829548931.

139845928 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459868 + ... + 460171.

It is an arithmetic number, because the mean of its divisors is an integer number (17250750).

Almost surely, 2^139845928 is an apocalyptic number.

It is an amenable number.

139845928 is a deficient number, since it is larger than the sum of its proper divisors (136166072).

139845928 is a wasteful number, since it uses less digits than its factorization.

139845928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920064 (or 920060 counting only the distinct ones).

The product of its digits is 622080, while the sum is 49.

The square root of 139845928 is about 11825.6470436082. The cubic root of 139845928 is about 519.0588598023.

The spelling of 139845928 in words is "one hundred thirty-nine million, eight hundred forty-five thousand, nine hundred twenty-eight".