139517692271 has 2 divisors, whose sum is σ = 139517692272. Its totient is φ = 139517692270.

The previous prime is 139517692267. The next prime is 139517692357. The reversal of 139517692271 is 172296715931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139517692271 - 2² = 139517692267 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139517692201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69758846135 + 69758846136.

It is an arithmetic number, because the mean of its divisors is an integer number (69758846136).

Almost surely, 2^139517692271 is an apocalyptic number.

139517692271 is a deficient number, since it is larger than the sum of its proper divisors (1).

139517692271 is an equidigital number, since it uses as much as digits as its factorization.

139517692271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428840, while the sum is 53.

The spelling of 139517692271 in words is "one hundred thirty-nine billion, five hundred seventeen million, six hundred ninety-two thousand, two hundred seventy-one".