317116819 has 2 divisors, whose sum is σ = 317116820. Its totient is φ = 317116818.

The previous prime is 317116781. The next prime is 317116901. The reversal of 317116819 is 918611713.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 317116819 - 2¹¹ = 317114771 is a prime.

It is a super-2 number, since 2×317116819² = 201126153785357522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (317116519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158558409 + 158558410.

It is an arithmetic number, because the mean of its divisors is an integer number (158558410).

Almost surely, 2^317116819 is an apocalyptic number.

317116819 is a deficient number, since it is larger than the sum of its proper divisors (1).

317116819 is an equidigital number, since it uses as much as digits as its factorization.

317116819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 37.

The square root of 317116819 is about 17807.7741169412. The cubic root of 317116819 is about 681.9299405161.

The spelling of 317116819 in words is "three hundred seventeen million, one hundred sixteen thousand, eight hundred nineteen".