6317147257 has 2 divisors, whose sum is σ = 6317147258. Its totient is φ = 6317147256.

The previous prime is 6317147219. The next prime is 6317147273. The reversal of 6317147257 is 7527417136.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3468149881 + 2848997376 = 58891^2 + 53376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6317147257 is a prime.

It is not a weakly prime, because it can be changed into another prime (6317147297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3158573628 + 3158573629.

It is an arithmetic number, because the mean of its divisors is an integer number (3158573629).

Almost surely, 2^6317147257 is an apocalyptic number.

It is an amenable number.

6317147257 is a deficient number, since it is larger than the sum of its proper divisors (1).

6317147257 is an equidigital number, since it uses as much as digits as its factorization.

6317147257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 43.

The square root of 6317147257 is about 79480.4834975228. The cubic root of 6317147257 is about 1848.5888685795.

The spelling of 6317147257 in words is "six billion, three hundred seventeen million, one hundred forty-seven thousand, two hundred fifty-seven".