1296876563 has 2 divisors, whose sum is σ = 1296876564. Its totient is φ = 1296876562.

The previous prime is 1296876523. The next prime is 1296876587. The reversal of 1296876563 is 3656786921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1296876563 - 2²⁶ = 1229767699 is a prime.

It is not a weakly prime, because it can be changed into another prime (1296876523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648438281 + 648438282.

It is an arithmetic number, because the mean of its divisors is an integer number (648438282).

Almost surely, 2^1296876563 is an apocalyptic number.

1296876563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1296876563 is an equidigital number, since it uses as much as digits as its factorization.

1296876563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 53.

The square root of 1296876563 is about 36012.1724282221. The cubic root of 1296876563 is about 1090.5181059626.

The spelling of 1296876563 in words is "one billion, two hundred ninety-six million, eight hundred seventy-six thousand, five hundred sixty-three".