317212529 has 2 divisors, whose sum is σ = 317212530. Its totient is φ = 317212528.

The previous prime is 317212513. The next prime is 317212549. The reversal of 317212529 is 925212713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316306225 + 906304 = 17785^2 + 952^2 .

It is a cyclic number.

It is not a de Polignac number, because 317212529 - 2⁴ = 317212513 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 317212495 and 317212504.

It is not a weakly prime, because it can be changed into another prime (317212549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158606264 + 158606265.

It is an arithmetic number, because the mean of its divisors is an integer number (158606265).

Almost surely, 2^317212529 is an apocalyptic number.

It is an amenable number.

317212529 is a deficient number, since it is larger than the sum of its proper divisors (1).

317212529 is an equidigital number, since it uses as much as digits as its factorization.

317212529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 32.

The square root of 317212529 is about 17810.4612236741. The cubic root of 317212529 is about 681.9985387378.

The spelling of 317212529 in words is "three hundred seventeen million, two hundred twelve thousand, five hundred twenty-nine".