13160809 has 6 divisors (see below), whose sum is σ = 13631150. Its totient is φ = 12706176.

The previous prime is 13160731. The next prime is 13160821. The reversal of 13160809 is 90806131.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 714025 + 12446784 = 845^2 + 3528^2 .

It is not a de Polignac number, because 13160809 - 2⁹ = 13160297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13160509) 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, 6984 + ... + 8665.

Almost surely, 2^13160809 is an apocalyptic number.

It is an amenable number.

13160809 is a deficient number, since it is larger than the sum of its proper divisors (470341).

13160809 is an equidigital number, since it uses as much as digits as its factorization.

13160809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15707 (or 15678 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 13160809 is about 3627.7829317642. The cubic root of 13160809 is about 236.0990259999.

The spelling of 13160809 in words is "thirteen million, one hundred sixty thousand, eight hundred nine".