139317319 has 2 divisors, whose sum is σ = 139317320. Its totient is φ = 139317318.

The previous prime is 139317301. The next prime is 139317323. The reversal of 139317319 is 913713931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139317319 - 2⁵ = 139317287 is a prime.

It is a super-2 number, since 2×139317319² = 38818630746695522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139317359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69658659 + 69658660.

It is an arithmetic number, because the mean of its divisors is an integer number (69658660).

Almost surely, 2^139317319 is an apocalyptic number.

139317319 is a deficient number, since it is larger than the sum of its proper divisors (1).

139317319 is an equidigital number, since it uses as much as digits as its factorization.

139317319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15309, while the sum is 37.

The square root of 139317319 is about 11803.2757741230. The cubic root of 139317319 is about 518.4040305229.

The spelling of 139317319 in words is "one hundred thirty-nine million, three hundred seventeen thousand, three hundred nineteen".