11811085 has 16 divisors (see below), whose sum is σ = 16652160. Its totient is φ = 7928640.

The previous prime is 11811083. The next prime is 11811089. The reversal of 11811085 is 58011811.

11811085 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11811085 - 2¹ = 11811083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11811083) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7545 + ... + 8974.

It is an arithmetic number, because the mean of its divisors is an integer number (1040760).

Almost surely, 2^11811085 is an apocalyptic number.

It is an amenable number.

11811085 is a deficient number, since it is larger than the sum of its proper divisors (4841075).

11811085 is a wasteful number, since it uses less digits than its factorization.

11811085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16548.

The product of its (nonzero) digits is 320, while the sum is 25.

The square root of 11811085 is about 3436.7259128420. The cubic root of 11811085 is about 227.7350788272.

Adding to 11811085 its reverse (58011811), we get a palindrome (69822896).

The spelling of 11811085 in words is "eleven million, eight hundred eleven thousand, eighty-five".