1312957199 has 2 divisors, whose sum is σ = 1312957200. Its totient is φ = 1312957198.

The previous prime is 1312957189. The next prime is 1312957201. The reversal of 1312957199 is 9917592131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1312957199 - 2⁴ = 1312957183 is a prime.

Together with 1312957201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312957109) 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, 656478599 + 656478600.

It is an arithmetic number, because the mean of its divisors is an integer number (656478600).

Almost surely, 2^1312957199 is an apocalyptic number.

1312957199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312957199 is an equidigital number, since it uses as much as digits as its factorization.

1312957199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153090, while the sum is 47.

The square root of 1312957199 is about 36234.7512617377. The cubic root of 1312957199 is about 1095.0069011193.

The spelling of 1312957199 in words is "one billion, three hundred twelve million, nine hundred fifty-seven thousand, one hundred ninety-nine".