11113865 has 8 divisors (see below), whose sum is σ = 15241920. Its totient is φ = 7620912.

The previous prime is 11113849. The next prime is 11113891. The reversal of 11113865 is 56831111.

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 11113865 - 2⁴ = 11113849 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158735 + ... + 158804.

It is an arithmetic number, because the mean of its divisors is an integer number (1905240).

Almost surely, 2^11113865 is an apocalyptic number.

It is an amenable number.

11113865 is a deficient number, since it is larger than the sum of its proper divisors (4128055).

11113865 is an equidigital number, since it uses as much as digits as its factorization.

11113865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317551.

The product of its digits is 720, while the sum is 26.

The square root of 11113865 is about 3333.7463910742. The cubic root of 11113865 is about 223.1627506108.

Adding to 11113865 its reverse (56831111), we get a palindrome (67944976).

The spelling of 11113865 in words is "eleven million, one hundred thirteen thousand, eight hundred sixty-five".