11189141 has 4 divisors (see below), whose sum is σ = 11196492. Its totient is φ = 11181792.

The previous prime is 11189131. The next prime is 11189183. The reversal of 11189141 is 14198111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2656900 + 8532241 = 1630^2 + 2921^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11189141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11189141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11189131) 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, 446 + ... + 4751.

It is an arithmetic number, because the mean of its divisors is an integer number (2799123).

Almost surely, 2^11189141 is an apocalyptic number.

It is an amenable number.

11189141 is a deficient number, since it is larger than the sum of its proper divisors (7351).

11189141 is an equidigital number, since it uses as much as digits as its factorization.

11189141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7350.

The product of its digits is 288, while the sum is 26.

The square root of 11189141 is about 3345.0173392675. The cubic root of 11189141 is about 223.6654564441.

The spelling of 11189141 in words is "eleven million, one hundred eighty-nine thousand, one hundred forty-one".