11089081 has 4 divisors (see below), whose sum is σ = 11100964. Its totient is φ = 11077200.

The previous prime is 11089073. The next prime is 11089087. The reversal of 11089081 is 18098011.

11089081 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18098011 = 223 ⋅81157.

It can be written as a sum of positive squares in 2 ways, for example, as 5405625 + 5683456 = 2325^2 + 2384^2 .

It is a cyclic number.

It is not a de Polignac number, because 11089081 - 2³ = 11089073 is a prime.

It is a super-2 number, since 2×11089081² = 245935434849122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11089087) 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, 4410 + ... + 6451.

It is an arithmetic number, because the mean of its divisors is an integer number (2775241).

Almost surely, 2^11089081 is an apocalyptic number.

It is an amenable number.

11089081 is a deficient number, since it is larger than the sum of its proper divisors (11883).

11089081 is a wasteful number, since it uses less digits than its factorization.

11089081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11882.

The product of its (nonzero) digits is 576, while the sum is 28.

The square root of 11089081 is about 3330.0271770663. The cubic root of 11089081 is about 222.9967422959.

The spelling of 11089081 in words is "eleven million, eighty-nine thousand, eighty-one".