317243216 has 10 divisors (see below), whose sum is σ = 614658762. Its totient is φ = 158621600.

The previous prime is 317243203. The next prime is 317243221. The reversal of 317243216 is 612342713.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 302064400 + 15178816 = 17380^2 + 3896^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9913835 + ... + 9913866.

Almost surely, 2^317243216 is an apocalyptic number.

It is an amenable number.

317243216 is a deficient number, since it is larger than the sum of its proper divisors (297415546).

317243216 is a wasteful number, since it uses less digits than its factorization.

317243216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19827709 (or 19827703 counting only the distinct ones).

The product of its digits is 6048, while the sum is 29.

The square root of 317243216 is about 17811.3226909177. The cubic root of 317243216 is about 682.0205301078.

Adding to 317243216 its reverse (612342713), we get a palindrome (929585929).

The spelling of 317243216 in words is "three hundred seventeen million, two hundred forty-three thousand, two hundred sixteen".