13361165 has 4 divisors (see below), whose sum is σ = 16033404. Its totient is φ = 10688928.

The previous prime is 13361147. The next prime is 13361209. The reversal of 13361165 is 56116331.

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 7739524 + 5621641 = 2782^2 + 2371^2 .

It is a cyclic number.

It is not a de Polignac number, because 13361165 - 2¹⁴ = 13344781 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, 1336112 + ... + 1336121.

It is an arithmetic number, because the mean of its divisors is an integer number (4008351).

Almost surely, 2^13361165 is an apocalyptic number.

It is an amenable number.

13361165 is a deficient number, since it is larger than the sum of its proper divisors (2672239).

13361165 is an equidigital number, since it uses as much as digits as its factorization.

13361165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672238.

The product of its digits is 1620, while the sum is 26.

The square root of 13361165 is about 3655.2927379350. The cubic root of 13361165 is about 237.2910960813.

Adding to 13361165 its reverse (56116331), we get a palindrome (69477496).

The spelling of 13361165 in words is "thirteen million, three hundred sixty-one thousand, one hundred sixty-five".