1312379 has 2 divisors, whose sum is σ = 1312380. Its totient is φ = 1312378.

The previous prime is 1312373. The next prime is 1312391. The reversal of 1312379 is 9732131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312379 - 2²⁰ = 263803 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1312373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656189 + 656190.

It is an arithmetic number, because the mean of its divisors is an integer number (656190).

2^1312379 is an apocalyptic number.

1312379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312379 is an equidigital number, since it uses as much as digits as its factorization.

1312379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134, while the sum is 26.

The square root of 1312379 is about 1145.5911137924. The cubic root of 1312379 is about 109.4846138108.

The spelling of 1312379 in words is "one million, three hundred twelve thousand, three hundred seventy-nine".