1299743 has 2 divisors, whose sum is σ = 1299744. Its totient is φ = 1299742.

The previous prime is 1299721. The next prime is 1299763. The reversal of 1299743 is 3479921.

It is a strong prime.

It is an emirp because it is prime and its reverse (3479921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1299743 - 2¹⁰ = 1298719 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1299763) 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, 649871 + 649872.

It is an arithmetic number, because the mean of its divisors is an integer number (649872).

2^1299743 is an apocalyptic number.

1299743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299743 is an equidigital number, since it uses as much as digits as its factorization.

1299743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 35.

The square root of 1299743 is about 1140.0627175730. The cubic root of 1299743 is about 109.1320958329.

The spelling of 1299743 in words is "one million, two hundred ninety-nine thousand, seven hundred forty-three".