13205165 has 8 divisors (see below), whose sum is σ = 15877728. Its totient is φ = 10543120.

The previous prime is 13205149. The next prime is 13205173. The reversal of 13205165 is 56150231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13205165 - 2⁴ = 13205149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13205165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470 + ... + 5160.

It is an arithmetic number, because the mean of its divisors is an integer number (1984716).

Almost surely, 2^13205165 is an apocalyptic number.

It is an amenable number.

13205165 is a deficient number, since it is larger than the sum of its proper divisors (2672563).

13205165 is an equidigital number, since it uses as much as digits as its factorization.

13205165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5259.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 13205165 is about 3633.8911651286. The cubic root of 13205165 is about 236.3639708396.

Adding to 13205165 its reverse (56150231), we get a palindrome (69355396).

The spelling of 13205165 in words is "thirteen million, two hundred five thousand, one hundred sixty-five".