11162189 has 2 divisors, whose sum is σ = 11162190. Its totient is φ = 11162188.

The previous prime is 11162167. The next prime is 11162191. The reversal of 11162189 is 98126111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6980164 + 4182025 = 2642^2 + 2045^2 .

It is a cyclic number.

It is not a de Polignac number, because 11162189 - 2⁸ = 11161933 is a prime.

Together with 11162191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11162119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5581094 + 5581095.

It is an arithmetic number, because the mean of its divisors is an integer number (5581095).

Almost surely, 2^11162189 is an apocalyptic number.

It is an amenable number.

11162189 is a deficient number, since it is larger than the sum of its proper divisors (1).

11162189 is an equidigital number, since it uses as much as digits as its factorization.

11162189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 29.

The square root of 11162189 is about 3340.9862316388. The cubic root of 11162189 is about 223.4857262912.

The spelling of 11162189 in words is "eleven million, one hundred sixty-two thousand, one hundred eighty-nine".