317910245 has 8 divisors (see below), whose sum is σ = 384869016. Its totient is φ = 252077056.

The previous prime is 317910227. The next prime is 317910247. The reversal of 317910245 is 542019713.

It can be written as a sum of positive squares in 4 ways, for example, as 26388769 + 291521476 = 5137^2 + 17074^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 317910245 - 2⁶ = 317910181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317910247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280772 + ... + 281901.

It is an arithmetic number, because the mean of its divisors is an integer number (48108627).

Almost surely, 2^317910245 is an apocalyptic number.

It is an amenable number.

317910245 is a deficient number, since it is larger than the sum of its proper divisors (66958771).

317910245 is a wasteful number, since it uses less digits than its factorization.

317910245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562791.

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

The square root of 317910245 is about 17830.0377172904. The cubic root of 317910245 is about 682.4981962231.

Adding to 317910245 its reverse (542019713), we get a palindrome (859929958).

The spelling of 317910245 in words is "three hundred seventeen million, nine hundred ten thousand, two hundred forty-five".