13099994 has 8 divisors (see below), whose sum is σ = 19972308. Its totient is φ = 6442560.

The previous prime is 13099991. The next prime is 13100023. The reversal of 13099994 is 49999031.

It can be written as a sum of positive squares in 2 ways, for example, as 13053769 + 46225 = 3613^2 + 215^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13099991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53567 + ... + 53810.

Almost surely, 2^13099994 is an apocalyptic number.

13099994 is a deficient number, since it is larger than the sum of its proper divisors (6872314).

13099994 is a wasteful number, since it uses less digits than its factorization.

13099994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107440.

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 13099994 is about 3619.3913853022. The cubic root of 13099994 is about 235.7347997713.

The spelling of 13099994 in words is "thirteen million, ninety-nine thousand, nine hundred ninety-four".