6531459317 has 2 divisors, whose sum is σ = 6531459318. Its totient is φ = 6531459316.

The previous prime is 6531459307. The next prime is 6531459343. The reversal of 6531459317 is 7139541356.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4954892881 + 1576566436 = 70391^2 + 39706^2 .

It is a cyclic number.

It is not a de Polignac number, because 6531459317 - 2⁸ = 6531459061 is a prime.

It is a super-2 number, since 2×6531459317² = 85319921619252212978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6531459307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3265729658 + 3265729659.

It is an arithmetic number, because the mean of its divisors is an integer number (3265729659).

Almost surely, 2^6531459317 is an apocalyptic number.

It is an amenable number.

6531459317 is a deficient number, since it is larger than the sum of its proper divisors (1).

6531459317 is an equidigital number, since it uses as much as digits as its factorization.

6531459317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 340200, while the sum is 44.

The square root of 6531459317 is about 80817.4443854791. Note that the first 3 decimals coincide. The cubic root of 6531459317 is about 1869.2615610316.

The spelling of 6531459317 in words is "six billion, five hundred thirty-one million, four hundred fifty-nine thousand, three hundred seventeen".