1299796913 has 4 divisors (see below), whose sum is σ = 1300749120. Its totient is φ = 1298844708.

The previous prime is 1299796909. The next prime is 1299796919. The reversal of 1299796913 is 3196979921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1299796913 - 2² = 1299796909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1299796919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474053 + ... + 476786.

It is an arithmetic number, because the mean of its divisors is an integer number (325187280).

Almost surely, 2^1299796913 is an apocalyptic number.

It is an amenable number.

1299796913 is a deficient number, since it is larger than the sum of its proper divisors (952207).

1299796913 is an equidigital number, since it uses as much as digits as its factorization.

1299796913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952206.

The product of its digits is 1653372, while the sum is 56.

The square root of 1299796913 is about 36052.6963346710. The cubic root of 1299796913 is about 1091.3360473561.

The spelling of 1299796913 in words is "one billion, two hundred ninety-nine million, seven hundred ninety-six thousand, nine hundred thirteen".