1246664317 has 2 divisors, whose sum is σ = 1246664318. Its totient is φ = 1246664316.

The previous prime is 1246664303. The next prime is 1246664323. The reversal of 1246664317 is 7134666421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 766791481 + 479872836 = 27691^2 + 21906^2 .

It is a cyclic number.

It is not a de Polignac number, because 1246664317 - 2⁷ = 1246664189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1246664317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1246664387) 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 as a sum of consecutive naturals, namely, 623332158 + 623332159.

It is an arithmetic number, because the mean of its divisors is an integer number (623332159).

Almost surely, 2^1246664317 is an apocalyptic number.

It is an amenable number.

1246664317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1246664317 is an equidigital number, since it uses as much as digits as its factorization.

1246664317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 40.

The square root of 1246664317 is about 35308.1338645927. The cubic root of 1246664317 is about 1076.2582899257.

The spelling of 1246664317 in words is "one billion, two hundred forty-six million, six hundred sixty-four thousand, three hundred seventeen".