11365631 has 8 divisors (see below), whose sum is σ = 11749584. Its totient is φ = 10987200.

The previous prime is 11365603. The next prime is 11365637. The reversal of 11365631 is 13656311.

11365631 is digitally balanced in base 3, 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 a cyclic number.

It is not a de Polignac number, because 11365631 - 2²² = 7171327 is a prime.

It is a super-2 number, since 2×11365631² = 258355136056322, 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 11365631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11365637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3035 + ... + 5651.

It is an arithmetic number, because the mean of its divisors is an integer number (1468698).

Almost surely, 2^11365631 is an apocalyptic number.

11365631 is a deficient number, since it is larger than the sum of its proper divisors (383953).

11365631 is a wasteful number, since it uses less digits than its factorization.

11365631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761.

The product of its digits is 1620, while the sum is 26.

The square root of 11365631 is about 3371.2951517184. The cubic root of 11365631 is about 224.8353099362.

The spelling of 11365631 in words is "eleven million, three hundred sixty-five thousand, six hundred thirty-one".