139204139108 has 6 divisors (see below), whose sum is σ = 243607243446. Its totient is φ = 69602069552.

The previous prime is 139204139099. The next prime is 139204139177. The reversal of 139204139108 is 801931402931.

It can be written as a sum of positive squares in only one way, i.e., 118137938944 + 21066200164 = 343712^2 + 145142^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17400517385 + ... + 17400517392.

It is an arithmetic number, because the mean of its divisors is an integer number (40601207241).

Almost surely, 2^139204139108 is an apocalyptic number.

It is an amenable number.

139204139108 is a deficient number, since it is larger than the sum of its proper divisors (104403104338).

139204139108 is a wasteful number, since it uses less digits than its factorization.

139204139108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34801034781 (or 34801034779 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 139204139108 in words is "one hundred thirty-nine billion, two hundred four million, one hundred thirty-nine thousand, one hundred eight".