1296816907 has 2 divisors, whose sum is σ = 1296816908. Its totient is φ = 1296816906.

The previous prime is 1296816883. The next prime is 1296816923. The reversal of 1296816907 is 7096186921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1296816907 - 2⁷ = 1296816779 is a prime.

It is not a weakly prime, because it can be changed into another prime (1296816977) 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, 648408453 + 648408454.

It is an arithmetic number, because the mean of its divisors is an integer number (648408454).

Almost surely, 2^1296816907 is an apocalyptic number.

1296816907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1296816907 is an equidigital number, since it uses as much as digits as its factorization.

1296816907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 1296816907 is about 36011.3441432002. The cubic root of 1296816907 is about 1090.5013845188.

The spelling of 1296816907 in words is "one billion, two hundred ninety-six million, eight hundred sixteen thousand, nine hundred seven".