11133885 has 32 divisors (see below), whose sum is σ = 20570112. Its totient is φ = 5037120.

The previous prime is 11133841. The next prime is 11133907. The reversal of 11133885 is 58833111.

It is not a de Polignac number, because 11133885 - 2¹⁰ = 11132861 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10740 + ... + 11730.

It is an arithmetic number, because the mean of its divisors is an integer number (642816).

Almost surely, 2^11133885 is an apocalyptic number.

11133885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11133885 is a deficient number, since it is larger than the sum of its proper divisors (9436227).

11133885 is a wasteful number, since it uses less digits than its factorization.

11133885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113.

The product of its digits is 2880, while the sum is 30.

The square root of 11133885 is about 3336.7476680145. The cubic root of 11133885 is about 223.2966685683.

Adding to 11133885 its reverse (58833111), we get a palindrome (69966996).

The spelling of 11133885 in words is "eleven million, one hundred thirty-three thousand, eight hundred eighty-five".