1264717523 has 2 divisors, whose sum is σ = 1264717524. Its totient is φ = 1264717522.

The previous prime is 1264717469. The next prime is 1264717541. The reversal of 1264717523 is 3257174621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1264717523 - 2²⁰ = 1263668947 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1264714523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632358761 + 632358762.

It is an arithmetic number, because the mean of its divisors is an integer number (632358762).

Almost surely, 2^1264717523 is an apocalyptic number.

1264717523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264717523 is an equidigital number, since it uses as much as digits as its factorization.

1264717523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 38.

The square root of 1264717523 is about 35562.8671931834. The cubic root of 1264717523 is about 1081.4285858784.

The spelling of 1264717523 in words is "one billion, two hundred sixty-four million, seven hundred seventeen thousand, five hundred twenty-three".