13253909 has 4 divisors (see below), whose sum is σ = 13421760. Its totient is φ = 13086060.

The previous prime is 13253893. The next prime is 13253917. The reversal of 13253909 is 90935231.

13253909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 13253909 - 2⁴ = 13253893 is a prime.

It is a super-2 number, since 2×13253909² = 351332207560562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13253309) 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, 83807 + ... + 83964.

It is an arithmetic number, because the mean of its divisors is an integer number (3355440).

Almost surely, 2^13253909 is an apocalyptic number.

It is an amenable number.

13253909 is a deficient number, since it is larger than the sum of its proper divisors (167851).

13253909 is an equidigital number, since it uses as much as digits as its factorization.

13253909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167850.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 13253909 is about 3640.5918474885. The cubic root of 13253909 is about 236.6544424906.

The spelling of 13253909 in words is "thirteen million, two hundred fifty-three thousand, nine hundred nine".