11189071 has 4 divisors (see below), whose sum is σ = 11198200. Its totient is φ = 11179944.

The previous prime is 11189069. The next prime is 11189093. The reversal of 11189071 is 17098111.

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 is a cyclic number.

It is not a de Polignac number, because 11189071 - 2¹ = 11189069 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 (11189051) 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, 2376 + ... + 5293.

It is an arithmetic number, because the mean of its divisors is an integer number (2799550).

Almost surely, 2^11189071 is an apocalyptic number.

11189071 is a deficient number, since it is larger than the sum of its proper divisors (9129).

11189071 is an equidigital number, since it uses as much as digits as its factorization.

11189071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9128.

The product of its (nonzero) digits is 504, while the sum is 28.

The square root of 11189071 is about 3345.0068759272. The cubic root of 11189071 is about 223.6649900212.

The spelling of 11189071 in words is "eleven million, one hundred eighty-nine thousand, seventy-one".