139517692357 has 2 divisors, whose sum is σ = 139517692358. Its totient is φ = 139517692356.

The previous prime is 139517692271. The next prime is 139517692373. The reversal of 139517692357 is 753296715931.

139517692357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132209323236 + 7308369121 = 363606^2 + 85489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139517692357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139517692757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69758846178 + 69758846179.

It is an arithmetic number, because the mean of its divisors is an integer number (69758846179).

Almost surely, 2^139517692357 is an apocalyptic number.

It is an amenable number.

139517692357 is a deficient number, since it is larger than the sum of its proper divisors (1).

139517692357 is an equidigital number, since it uses as much as digits as its factorization.

139517692357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10716300, while the sum is 58.

The spelling of 139517692357 in words is "one hundred thirty-nine billion, five hundred seventeen million, six hundred ninety-two thousand, three hundred fifty-seven".