13813299 has 24 divisors (see below), whose sum is σ = 21312720. Its totient is φ = 8590848.

The previous prime is 13813297. The next prime is 13813307. The reversal of 13813299 is 99231831.

13813299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13813299 - 2¹ = 13813297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13813297) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20632 + ... + 21290.

It is an arithmetic number, because the mean of its divisors is an integer number (888030).

Almost surely, 2^13813299 is an apocalyptic number.

13813299 is a deficient number, since it is larger than the sum of its proper divisors (7499421).

13813299 is a wasteful number, since it uses less digits than its factorization.

13813299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819 (or 816 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 13813299 is about 3716.6246783876. The cubic root of 13813299 is about 239.9380569308.

The spelling of 13813299 in words is "thirteen million, eight hundred thirteen thousand, two hundred ninety-nine".