139082788 has 24 divisors (see below), whose sum is σ = 263467512. Its totient is φ = 63861504.

The previous prime is 139082747. The next prime is 139082791. The reversal of 139082788 is 887280931.

It can be written as a sum of positive squares in 4 ways, for example, as 73925604 + 65157184 = 8598^2 + 8072^2 .

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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3456 + ... + 17032.

It is an arithmetic number, because the mean of its divisors is an integer number (10977813).

Almost surely, 2^139082788 is an apocalyptic number.

It is an amenable number.

139082788 is a deficient number, since it is larger than the sum of its proper divisors (124384724).

139082788 is a wasteful number, since it uses less digits than its factorization.

139082788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13791 (or 13789 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 139082788 is about 11793.3365931784. The cubic root of 139082788 is about 518.1129681116.

The spelling of 139082788 in words is "one hundred thirty-nine million, eighty-two thousand, seven hundred eighty-eight".