317143207 has 2 divisors, whose sum is σ = 317143208. Its totient is φ = 317143206.

The previous prime is 317143157. The next prime is 317143213. The reversal of 317143207 is 702341713.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 317143207 - 2¹¹ = 317141159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317143247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158571603 + 158571604.

It is an arithmetic number, because the mean of its divisors is an integer number (158571604).

Almost surely, 2^317143207 is an apocalyptic number.

317143207 is a deficient number, since it is larger than the sum of its proper divisors (1).

317143207 is an equidigital number, since it uses as much as digits as its factorization.

317143207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 317143207 is about 17808.5150138915. The cubic root of 317143207 is about 681.9488549635.

The spelling of 317143207 in words is "three hundred seventeen million, one hundred forty-three thousand, two hundred seven".