139351179613 has 2 divisors, whose sum is σ = 139351179614. Its totient is φ = 139351179612.

The previous prime is 139351179577. The next prime is 139351179661. The reversal of 139351179613 is 316971153931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138590909284 + 760270329 = 372278^2 + 27573^2 .

It is a cyclic number.

It is not a de Polignac number, because 139351179613 - 2⁹ = 139351179101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139351179113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69675589806 + 69675589807.

It is an arithmetic number, because the mean of its divisors is an integer number (69675589807).

Almost surely, 2^139351179613 is an apocalyptic number.

It is an amenable number.

139351179613 is a deficient number, since it is larger than the sum of its proper divisors (1).

139351179613 is an equidigital number, since it uses as much as digits as its factorization.

139351179613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 459270, while the sum is 49.

The spelling of 139351179613 in words is "one hundred thirty-nine billion, three hundred fifty-one million, one hundred seventy-nine thousand, six hundred thirteen".