317606249 has 2 divisors, whose sum is σ = 317606250. Its totient is φ = 317606248.

The previous prime is 317606239. The next prime is 317606269. The reversal of 317606249 is 942606713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 246709849 + 70896400 = 15707^2 + 8420^2 .

It is an emirp because it is prime and its reverse (942606713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 317606249 - 2⁸ = 317605993 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (317606239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158803124 + 158803125.

It is an arithmetic number, because the mean of its divisors is an integer number (158803125).

Almost surely, 2^317606249 is an apocalyptic number.

It is an amenable number.

317606249 is a deficient number, since it is larger than the sum of its proper divisors (1).

317606249 is an equidigital number, since it uses as much as digits as its factorization.

317606249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 317606249 is about 17821.5108506546. The cubic root of 317606249 is about 682.2805846047.

The spelling of 317606249 in words is "three hundred seventeen million, six hundred six thousand, two hundred forty-nine".