11289189 has 4 divisors (see below), whose sum is σ = 15052256. Its totient is φ = 7526124.

The previous prime is 11289167. The next prime is 11289191. The reversal of 11289189 is 98198211.

11289189 is digitally balanced in base 3, because in such base 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98198211 = 3 ⋅32732737.

It is not a de Polignac number, because 11289189 - 2⁹ = 11288677 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 (11289199) 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, 1881529 + ... + 1881534.

It is an arithmetic number, because the mean of its divisors is an integer number (3763064).

Almost surely, 2^11289189 is an apocalyptic number.

It is an amenable number.

11289189 is a deficient number, since it is larger than the sum of its proper divisors (3763067).

11289189 is an equidigital number, since it uses as much as digits as its factorization.

11289189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3763066.

The product of its digits is 10368, while the sum is 39.

The square root of 11289189 is about 3359.9388387291. The cubic root of 11289189 is about 224.3301162022.

The spelling of 11289189 in words is "eleven million, two hundred eighty-nine thousand, one hundred eighty-nine".