13397165 has 4 divisors (see below), whose sum is σ = 16076604. Its totient is φ = 10717728.

The previous prime is 13397161. The next prime is 13397191. The reversal of 13397165 is 56179331.

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 2886601 + 10510564 = 1699^2 + 3242^2 .

It is a cyclic number.

It is not a de Polignac number, because 13397165 - 2² = 13397161 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13397161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1339712 + ... + 1339721.

It is an arithmetic number, because the mean of its divisors is an integer number (4019151).

Almost surely, 2^13397165 is an apocalyptic number.

It is an amenable number.

13397165 is a deficient number, since it is larger than the sum of its proper divisors (2679439).

13397165 is an equidigital number, since it uses as much as digits as its factorization.

13397165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679438.

The product of its digits is 17010, while the sum is 35.

The square root of 13397165 is about 3660.2137915701. The cubic root of 13397165 is about 237.5040220925.

The spelling of 13397165 in words is "thirteen million, three hundred ninety-seven thousand, one hundred sixty-five".