13161165 has 8 divisors (see below), whose sum is σ = 21057888. Its totient is φ = 7019280.

The previous prime is 13161151. The next prime is 13161173. The reversal of 13161165 is 56116131.

13161165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13161165 - 2⁴ = 13161149 is a prime.

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, 438691 + ... + 438720.

It is an arithmetic number, because the mean of its divisors is an integer number (2632236).

Almost surely, 2^13161165 is an apocalyptic number.

13161165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13161165 is a deficient number, since it is larger than the sum of its proper divisors (7896723).

13161165 is an equidigital number, since it uses as much as digits as its factorization.

13161165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877419.

The product of its digits is 540, while the sum is 24.

The square root of 13161165 is about 3627.8319972127. The cubic root of 13161165 is about 236.1011548076.

Adding to 13161165 its reverse (56116131), we get a palindrome (69277296).

The spelling of 13161165 in words is "thirteen million, one hundred sixty-one thousand, one hundred sixty-five".