11085881 has 2 divisors, whose sum is σ = 11085882. Its totient is φ = 11085880.

The previous prime is 11085863. The next prime is 11085889. The reversal of 11085881 is 18858011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6175225 + 4910656 = 2485^2 + 2216^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11085881 is a prime.

It is a super-2 number, since 2×11085881² = 245793515092322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11085889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5542940 + 5542941.

It is an arithmetic number, because the mean of its divisors is an integer number (5542941).

Almost surely, 2^11085881 is an apocalyptic number.

It is an amenable number.

11085881 is a deficient number, since it is larger than the sum of its proper divisors (1).

11085881 is an equidigital number, since it uses as much as digits as its factorization.

11085881 is an evil number, because the sum of its binary digits is even.

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

The square root of 11085881 is about 3329.5466658391. The cubic root of 11085881 is about 222.9752900154.

The spelling of 11085881 in words is "eleven million, eighty-five thousand, eight hundred eighty-one".