11085913 has 4 divisors (see below), whose sum is σ = 11092900. Its totient is φ = 11078928.

The previous prime is 11085889. The next prime is 11085947. The reversal of 11085913 is 31958011.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 9467929 + 1617984 = 3077^2 + 1272^2 .

It is a cyclic number.

It is not a de Polignac number, because 11085913 - 2⁵ = 11085881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11085953) 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, 163 + ... + 4711.

It is an arithmetic number, because the mean of its divisors is an integer number (2773225).

Almost surely, 2^11085913 is an apocalyptic number.

It is an amenable number.

11085913 is a deficient number, since it is larger than the sum of its proper divisors (6987).

11085913 is an equidigital number, since it uses as much as digits as its factorization.

11085913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6986.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 11085913 is about 3329.5514712946. The cubic root of 11085913 is about 222.9755045587.

It can be divided in two parts, 1108 and 5913, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 11085913 in words is "eleven million, eighty-five thousand, nine hundred thirteen".