11261165 has 4 divisors (see below), whose sum is σ = 13513404. Its totient is φ = 9008928.

The previous prime is 11261143. The next prime is 11261171. The reversal of 11261165 is 56116211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56116211 = 2797 ⋅20063.

It can be written as a sum of positive squares in 2 ways, for example, as 2128681 + 9132484 = 1459^2 + 3022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11261165 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11261165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1126112 + ... + 1126121.

It is an arithmetic number, because the mean of its divisors is an integer number (3378351).

Almost surely, 2^11261165 is an apocalyptic number.

It is an amenable number.

11261165 is a deficient number, since it is larger than the sum of its proper divisors (2252239).

11261165 is an equidigital number, since it uses as much as digits as its factorization.

11261165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252238.

The product of its digits is 360, while the sum is 23.

The square root of 11261165 is about 3355.7659334346. The cubic root of 11261165 is about 224.1443385735.

Adding to 11261165 its reverse (56116211), we get a palindrome (67377376).

The spelling of 11261165 in words is "eleven million, two hundred sixty-one thousand, one hundred sixty-five".