13199913 has 6 divisors (see below), whose sum is σ = 19066554. Its totient is φ = 8799936.

The previous prime is 13199899. The next prime is 13199917. The reversal of 13199913 is 31999131.

It can be written as a sum of positive squares in only one way, i.e., 12027024 + 1172889 = 3468^2 + 1083^2 .

It is not a de Polignac number, because 13199913 - 2¹² = 13195817 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13199917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 733320 + ... + 733337.

It is an arithmetic number, because the mean of its divisors is an integer number (3177759).

Almost surely, 2^13199913 is an apocalyptic number.

It is an amenable number.

13199913 is a deficient number, since it is larger than the sum of its proper divisors (5866641).

13199913 is a wasteful number, since it uses less digits than its factorization.

13199913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466663 (or 1466660 counting only the distinct ones).

The product of its digits is 6561, while the sum is 36.

The square root of 13199913 is about 3633.1684519163. The cubic root of 13199913 is about 236.3326308756.

The spelling of 13199913 in words is "thirteen million, one hundred ninety-nine thousand, nine hundred thirteen".