13147165 has 4 divisors (see below), whose sum is σ = 15776604. Its totient is φ = 10517728.

The previous prime is 13147157. The next prime is 13147177. The reversal of 13147165 is 56174131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2316484 + 10830681 = 1522^2 + 3291^2 .

It is a cyclic number.

It is not a de Polignac number, because 13147165 - 2³ = 13147157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1314712 + ... + 1314721.

It is an arithmetic number, because the mean of its divisors is an integer number (3944151).

Almost surely, 2^13147165 is an apocalyptic number.

It is an amenable number.

13147165 is a deficient number, since it is larger than the sum of its proper divisors (2629439).

13147165 is an equidigital number, since it uses as much as digits as its factorization.

13147165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2629438.

The product of its digits is 2520, while the sum is 28.

The square root of 13147165 is about 3625.9019567550. The cubic root of 13147165 is about 236.0174087034.

The spelling of 13147165 in words is "thirteen million, one hundred forty-seven thousand, one hundred sixty-five".