139097694277 has 2 divisors, whose sum is σ = 139097694278. Its totient is φ = 139097694276.

The previous prime is 139097694179. The next prime is 139097694313. The reversal of 139097694277 is 772496790931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100505484676 + 38592209601 = 317026^2 + 196449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139097694277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139097694977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69548847138 + 69548847139.

It is an arithmetic number, because the mean of its divisors is an integer number (69548847139).

Almost surely, 2^139097694277 is an apocalyptic number.

It is an amenable number.

139097694277 is a deficient number, since it is larger than the sum of its proper divisors (1).

139097694277 is an equidigital number, since it uses as much as digits as its factorization.

139097694277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36006768, while the sum is 64.

The spelling of 139097694277 in words is "one hundred thirty-nine billion, ninety-seven million, six hundred ninety-four thousand, two hundred seventy-seven".