317154842497 has 2 divisors, whose sum is σ = 317154842498. Its totient is φ = 317154842496.

The previous prime is 317154842479. The next prime is 317154842507. The reversal of 317154842497 is 794248451713.

It is a happy number.

Together with previous prime (317154842479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177008684176 + 140146158321 = 420724^2 + 374361^2 .

It is a cyclic number.

It is not a de Polignac number, because 317154842497 - 2¹¹ = 317154840449 is a prime.

It is not a weakly prime, because it can be changed into another prime (317154842197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158577421248 + 158577421249.

It is an arithmetic number, because the mean of its divisors is an integer number (158577421249).

Almost surely, 2^317154842497 is an apocalyptic number.

It is an amenable number.

317154842497 is a deficient number, since it is larger than the sum of its proper divisors (1).

317154842497 is an equidigital number, since it uses as much as digits as its factorization.

317154842497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6773760, while the sum is 55.

The spelling of 317154842497 in words is "three hundred seventeen billion, one hundred fifty-four million, eight hundred forty-two thousand, four hundred ninety-seven".