22612189 has 2 divisors, whose sum is σ = 22612190. Its totient is φ = 22612188.

The previous prime is 22612169. The next prime is 22612201. The reversal of 22612189 is 98121622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18062500 + 4549689 = 4250^2 + 2133^2 .

It is a cyclic number.

It is not a de Polignac number, because 22612189 - 2⁷ = 22612061 is a prime.

It is a super-2 number, since 2×22612189² = 1022622182743442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22612189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22612129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11306094 + 11306095.

It is an arithmetic number, because the mean of its divisors is an integer number (11306095).

Almost surely, 2^22612189 is an apocalyptic number.

It is an amenable number.

22612189 is a deficient number, since it is larger than the sum of its proper divisors (1).

22612189 is an equidigital number, since it uses as much as digits as its factorization.

22612189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 31.

The square root of 22612189 is about 4755.2275445030. The cubic root of 22612189 is about 282.7792482440.

It can be divided in two parts, 22612 and 189, that added together give a square (22801 = 151²).

The spelling of 22612189 in words is "twenty-two million, six hundred twelve thousand, one hundred eighty-nine".