1312963 has 2 divisors, whose sum is σ = 1312964. Its totient is φ = 1312962.

The previous prime is 1312951. The next prime is 1312967. The reversal of 1312963 is 3692131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312963 - 2⁵ = 1312931 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1312967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656481 + 656482.

It is an arithmetic number, because the mean of its divisors is an integer number (656482).

2^1312963 is an apocalyptic number.

1312963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312963 is an equidigital number, since it uses as much as digits as its factorization.

1312963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972, while the sum is 25.

The square root of 1312963 is about 1145.8459756878. The cubic root of 1312963 is about 109.5008513796.

The spelling of 1312963 in words is "one million, three hundred twelve thousand, nine hundred sixty-three".