1299379 has 2 divisors, whose sum is σ = 1299380. Its totient is φ = 1299378.

The previous prime is 1299377. The next prime is 1299437. The reversal of 1299379 is 9739921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1299379 - 2¹ = 1299377 is a prime.

Together with 1299377, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1299377) 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, 649689 + 649690.

It is an arithmetic number, because the mean of its divisors is an integer number (649690).

2^1299379 is an apocalyptic number.

1299379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299379 is an equidigital number, since it uses as much as digits as its factorization.

1299379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30618, while the sum is 40.

The square root of 1299379 is about 1139.9030660543. The cubic root of 1299379 is about 109.1219072054.

The spelling of 1299379 in words is "one million, two hundred ninety-nine thousand, three hundred seventy-nine".