11365765 has 4 divisors (see below), whose sum is σ = 13638924. Its totient is φ = 9092608.

The previous prime is 11365759. The next prime is 11365769. The reversal of 11365765 is 56756311.

11365765 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56756311 = 397 ⋅142963.

It can be written as a sum of positive squares in 2 ways, for example, as 7656289 + 3709476 = 2767^2 + 1926^2 .

It is a cyclic number.

It is not a de Polignac number, because 11365765 - 2⁷ = 11365637 is a prime.

It is a super-2 number, since 2×11365765² = 258361228070450, which contains 22 as substring.

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 11365765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11365769) 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, 1136572 + ... + 1136581.

It is an arithmetic number, because the mean of its divisors is an integer number (3409731).

Almost surely, 2^11365765 is an apocalyptic number.

It is an amenable number.

11365765 is a deficient number, since it is larger than the sum of its proper divisors (2273159).

11365765 is an equidigital number, since it uses as much as digits as its factorization.

11365765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273158.

The product of its digits is 18900, while the sum is 34.

The square root of 11365765 is about 3371.3150253277. The cubic root of 11365765 is about 224.8361935303.

The spelling of 11365765 in words is "eleven million, three hundred sixty-five thousand, seven hundred sixty-five".