1297885759 has 2 divisors, whose sum is σ = 1297885760. Its totient is φ = 1297885758.

The previous prime is 1297885753. The next prime is 1297885789. The reversal of 1297885759 is 9575887921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1297885759 - 2²⁷ = 1163668031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1297885697 and 1297885706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1297885753) 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, 648942879 + 648942880.

It is an arithmetic number, because the mean of its divisors is an integer number (648942880).

Almost surely, 2^1297885759 is an apocalyptic number.

1297885759 is a deficient number, since it is larger than the sum of its proper divisors (1).

1297885759 is an equidigital number, since it uses as much as digits as its factorization.

1297885759 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12700800, while the sum is 61.

The square root of 1297885759 is about 36026.1815767367. The cubic root of 1297885759 is about 1090.8009036713.

The spelling of 1297885759 in words is "one billion, two hundred ninety-seven million, eight hundred eighty-five thousand, seven hundred fifty-nine".