22007189 has 4 divisors (see below), whose sum is σ = 22018956. Its totient is φ = 21995424.

The previous prime is 22007173. The next prime is 22007203. The reversal of 22007189 is 98170022.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98170022 = 2 ⋅49085011.

It can be written as a sum of positive squares in 2 ways, for example, as 11444689 + 10562500 = 3383^2 + 3250^2 .

It is a cyclic number.

It is not a de Polignac number, because 22007189 - 2⁴ = 22007173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22007989) 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, 2384 + ... + 7049.

It is an arithmetic number, because the mean of its divisors is an integer number (5504739).

Almost surely, 2^22007189 is an apocalyptic number.

It is an amenable number.

22007189 is a deficient number, since it is larger than the sum of its proper divisors (11767).

22007189 is an equidigital number, since it uses as much as digits as its factorization.

22007189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11766.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 22007189 is about 4691.1820472030. The cubic root of 22007189 is about 280.2344507428.

The spelling of 22007189 in words is "twenty-two million, seven thousand, one hundred eighty-nine".