11165 has 16 divisors (see below), whose sum is σ = 17280. Its totient is φ = 6720.

The previous prime is 11161. The next prime is 11171. The reversal of 11165 is 56111.

11165 = 60² + 61² + 62².

11165 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

11165 is an esthetic number in base 12, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 11165 - 2² = 11161 is a prime.

11165 is an undulating number in base 12.

11165 is strictly pandigital in base 6.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371 + ... + 399.

It is an arithmetic number, because the mean of its divisors is an integer number (1080).

2¹¹¹⁶⁵ is an apocalyptic number.

It is an amenable number.

11165 is a deficient number, since it is larger than the sum of its proper divisors (6115).

11165 is a wasteful number, since it uses less digits than its factorization.

11165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52.

The product of its digits is 30, while the sum is 14.

The square root of 11165 is about 105.6645635963. The cubic root of 11165 is about 22.3504485027.

Adding to 11165 its reverse (56111), we get a palindrome (67276).

The spelling of 11165 in words is "eleven thousand, one hundred sixty-five".