11188085 has 4 divisors (see below), whose sum is σ = 13425708. Its totient is φ = 8950464.

The previous prime is 11188081. The next prime is 11188103. The reversal of 11188085 is 58088111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7474756 + 3713329 = 2734^2 + 1927^2 .

It is a cyclic number.

It is not a de Polignac number, because 11188085 - 2² = 11188081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11188081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1118804 + ... + 1118813.

It is an arithmetic number, because the mean of its divisors is an integer number (3356427).

Almost surely, 2^11188085 is an apocalyptic number.

It is an amenable number.

11188085 is a deficient number, since it is larger than the sum of its proper divisors (2237623).

11188085 is an equidigital number, since it uses as much as digits as its factorization.

11188085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2237622.

The product of its (nonzero) digits is 2560, while the sum is 32.

The square root of 11188085 is about 3344.8594888276. The cubic root of 11188085 is about 223.6584199148.

The spelling of 11188085 in words is "eleven million, one hundred eighty-eight thousand, eighty-five".