11181889 has 8 divisors (see below), whose sum is σ = 11515392. Its totient is φ = 10851360.

The previous prime is 11181883. The next prime is 11181901. The reversal of 11181889 is 98818111.

11181889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11181889 - 2⁹ = 11181377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11181883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8532 + ... + 9754.

It is an arithmetic number, because the mean of its divisors is an integer number (1439424).

Almost surely, 2^11181889 is an apocalyptic number.

It is an amenable number.

11181889 is a deficient number, since it is larger than the sum of its proper divisors (333503).

11181889 is a wasteful number, since it uses less digits than its factorization.

11181889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487.

The product of its digits is 4608, while the sum is 37.

The square root of 11181889 is about 3343.9331632077. The cubic root of 11181889 is about 223.6171246897.

The spelling of 11181889 in words is "eleven million, one hundred eighty-one thousand, eight hundred eighty-nine".