317218469 has 2 divisors, whose sum is σ = 317218470. Its totient is φ = 317218468.

The previous prime is 317218411. The next prime is 317218523. The reversal of 317218469 is 964812713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 307546369 + 9672100 = 17537^2 + 3110^2 .

It is a cyclic number.

It is not a de Polignac number, because 317218469 - 2¹⁶ = 317152933 is a prime.

It is a super-2 number, since 2×317218469² = 201255114149407922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317248469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158609234 + 158609235.

It is an arithmetic number, because the mean of its divisors is an integer number (158609235).

Almost surely, 2^317218469 is an apocalyptic number.

It is an amenable number.

317218469 is a deficient number, since it is larger than the sum of its proper divisors (1).

317218469 is an equidigital number, since it uses as much as digits as its factorization.

317218469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 41.

The square root of 317218469 is about 17810.6279788221. The cubic root of 317218469 is about 682.0027956588.

The spelling of 317218469 in words is "three hundred seventeen million, two hundred eighteen thousand, four hundred sixty-nine".