11161189 has 16 divisors (see below), whose sum is σ = 12846400. Its totient is φ = 9611136.

The previous prime is 11161181. The next prime is 11161219. The reversal of 11161189 is 98116111.

11161189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11161189 - 2³ = 11161181 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 (11161181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17722 + ... + 18340.

It is an arithmetic number, because the mean of its divisors is an integer number (802900).

Almost surely, 2^11161189 is an apocalyptic number.

11161189 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11161189 is a deficient number, since it is larger than the sum of its proper divisors (1685211).

11161189 is a wasteful number, since it uses less digits than its factorization.

11161189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724.

The product of its digits is 432, while the sum is 28.

The square root of 11161189 is about 3340.8365718784. The cubic root of 11161189 is about 223.4790522001.

The spelling of 11161189 in words is "eleven million, one hundred sixty-one thousand, one hundred eighty-nine".