139317317 has 16 divisors (see below), whose sum is σ = 146990592. Its totient is φ = 131880960.

The previous prime is 139317301. The next prime is 139317319. The reversal of 139317317 is 713713931.

It is a cyclic number.

It is not a de Polignac number, because 139317317 - 2⁴ = 139317301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139317319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321533 + ... + 321965.

It is an arithmetic number, because the mean of its divisors is an integer number (9186912).

Almost surely, 2^139317317 is an apocalyptic number.

It is an amenable number.

139317317 is a deficient number, since it is larger than the sum of its proper divisors (7673275).

139317317 is a wasteful number, since it uses less digits than its factorization.

139317317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668.

The product of its digits is 11907, while the sum is 35.

The square root of 139317317 is about 11803.2756894008. The cubic root of 139317317 is about 518.4040280422.

The spelling of 139317317 in words is "one hundred thirty-nine million, three hundred seventeen thousand, three hundred seventeen".