13099969 has 4 divisors (see below), whose sum is σ = 13109296. Its totient is φ = 13090644.

The previous prime is 13099937. The next prime is 13099991. The reversal of 13099969 is 96999031.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13099969 - 2⁵ = 13099937 is a prime.

It is a super-2 number, since 2×13099969² = 343218375601922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13094969) 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 in 3 ways as a sum of consecutive naturals, for example, 2079 + ... + 5524.

It is an arithmetic number, because the mean of its divisors is an integer number (3277324).

Almost surely, 2^13099969 is an apocalyptic number.

It is an amenable number.

13099969 is a deficient number, since it is larger than the sum of its proper divisors (9327).

13099969 is an equidigital number, since it uses as much as digits as its factorization.

13099969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9326.

The product of its (nonzero) digits is 118098, while the sum is 46.

The square root of 13099969 is about 3619.3879316813. The cubic root of 13099969 is about 235.7346498126.

The spelling of 13099969 in words is "thirteen million, ninety-nine thousand, nine hundred sixty-nine".