139488892 has 12 divisors (see below), whose sum is σ = 244505520. Its totient is φ = 69630176.

The previous prime is 139488821. The next prime is 139488901. The reversal of 139488892 is 298884931.

It is a congruent number.

It is an unprimeable number.

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, 25792 + ... + 30727.

It is an arithmetic number, because the mean of its divisors is an integer number (20375460).

Almost surely, 2^139488892 is an apocalyptic number.

It is an amenable number.

139488892 is a deficient number, since it is larger than the sum of its proper divisors (105016628).

139488892 is a wasteful number, since it uses less digits than its factorization.

139488892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57140 (or 57138 counting only the distinct ones).

The product of its digits is 995328, while the sum is 52.

The square root of 139488892 is about 11810.5415625195. The cubic root of 139488892 is about 518.6167526931.

The spelling of 139488892 in words is "one hundred thirty-nine million, four hundred eighty-eight thousand, eight hundred ninety-two".