1296575617 has 2 divisors, whose sum is σ = 1296575618. Its totient is φ = 1296575616.

The previous prime is 1296575597. The next prime is 1296575627. The reversal of 1296575617 is 7165756921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1236295921 + 60279696 = 35161^2 + 7764^2 .

It is a cyclic number.

It is not a de Polignac number, because 1296575617 - 2¹¹ = 1296573569 is a prime.

It is a super-2 number, since 2×1296575617² = 3362216661197861378, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1296575627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648287808 + 648287809.

It is an arithmetic number, because the mean of its divisors is an integer number (648287809).

Almost surely, 2^1296575617 is an apocalyptic number.

It is an amenable number.

1296575617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1296575617 is an equidigital number, since it uses as much as digits as its factorization.

1296575617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 793800, while the sum is 49.

The square root of 1296575617 is about 36007.9937930455. The cubic root of 1296575617 is about 1090.4337462375.

The spelling of 1296575617 in words is "one billion, two hundred ninety-six million, five hundred seventy-five thousand, six hundred seventeen".