2242189 has 2 divisors, whose sum is σ = 2242190. Its totient is φ = 2242188.

The previous prime is 2242187. The next prime is 2242211. The reversal of 2242189 is 9812422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2175625 + 66564 = 1475^2 + 258^2 .

It is a cyclic number.

It is not a de Polignac number, because 2242189 - 2¹ = 2242187 is a prime.

Together with 2242187, it forms a pair of twin primes.

It is equal to p₁₆₅₅₄₇ and since 2242189 and 165547 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2242187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121094 + 1121095.

It is an arithmetic number, because the mean of its divisors is an integer number (1121095).

2^2242189 is an apocalyptic number.

It is an amenable number.

2242189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2242189 is an equidigital number, since it uses as much as digits as its factorization.

2242189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 28.

The square root of 2242189 is about 1497.3940697091. The cubic root of 2242189 is about 130.8852597467.

The spelling of 2242189 in words is "two million, two hundred forty-two thousand, one hundred eighty-nine".