11331865 has 8 divisors (see below), whose sum is σ = 13650048. Its totient is φ = 9030960.

The previous prime is 11331857. The next prime is 11331869. The reversal of 11331865 is 56813311.

11331865 is digitally balanced in base 2 and base 3, because in such bases 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 not a de Polignac number, because 11331865 - 2³ = 11331857 is a prime.

It is a super-2 number, since 2×11331865² = 256822328756450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11331869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2827 + ... + 5536.

It is an arithmetic number, because the mean of its divisors is an integer number (1706256).

Almost surely, 2^11331865 is an apocalyptic number.

It is an amenable number.

11331865 is a deficient number, since it is larger than the sum of its proper divisors (2318183).

11331865 is an equidigital number, since it uses as much as digits as its factorization.

11331865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8639.

The product of its digits is 2160, while the sum is 28.

The square root of 11331865 is about 3366.2835590603. The cubic root of 11331865 is about 224.6124356813.

The spelling of 11331865 in words is "eleven million, three hundred thirty-one thousand, eight hundred sixty-five".