11286565 has 4 divisors (see below), whose sum is σ = 13543884. Its totient is φ = 9029248.

The previous prime is 11286563. The next prime is 11286577. The reversal of 11286565 is 56568211.

It is a happy number.

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 3452164 + 7834401 = 1858^2 + 2799^2 .

It is a cyclic number.

It is not a de Polignac number, because 11286565 - 2¹ = 11286563 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 11286565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11286563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128652 + ... + 1128661.

It is an arithmetic number, because the mean of its divisors is an integer number (3385971).

Almost surely, 2^11286565 is an apocalyptic number.

It is an amenable number.

11286565 is a deficient number, since it is larger than the sum of its proper divisors (2257319).

11286565 is an equidigital number, since it uses as much as digits as its factorization.

11286565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257318.

The product of its digits is 14400, while the sum is 34.

The square root of 11286565 is about 3359.5483327376. The cubic root of 11286565 is about 224.3127341494.

The spelling of 11286565 in words is "eleven million, two hundred eighty-six thousand, five hundred sixty-five".