13240899 has 12 divisors (see below), whose sum is σ = 21858096. Its totient is φ = 7566192.

The previous prime is 13240889. The next prime is 13240921. The reversal of 13240899 is 99804231.

13240899 = 165² + 166² + ... + 353².

It is not a de Polignac number, because 13240899 - 2⁷ = 13240771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13240859) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105024 + ... + 105149.

It is an arithmetic number, because the mean of its divisors is an integer number (1821508).

Almost surely, 2^13240899 is an apocalyptic number.

13240899 is a deficient number, since it is larger than the sum of its proper divisors (8617197).

13240899 is a wasteful number, since it uses less digits than its factorization.

13240899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210186 (or 210183 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 13240899 is about 3638.8046114074. The cubic root of 13240899 is about 236.5769840278.

The spelling of 13240899 in words is "thirteen million, two hundred forty thousand, eight hundred ninety-nine".