2042189 has 2 divisors, whose sum is σ = 2042190. Its totient is φ = 2042188.

The previous prime is 2042179. The next prime is 2042203. The reversal of 2042189 is 9812402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1844164 + 198025 = 1358^2 + 445^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042189 - 2⁸ = 2041933 is a prime.

It is a Chen prime.

It is equal to p₁₅₁₈₅₆ and since 2042189 and 151856 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2042129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021094 + 1021095.

It is an arithmetic number, because the mean of its divisors is an integer number (1021095).

2^2042189 is an apocalyptic number.

It is an amenable number.

2042189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042189 is an equidigital number, since it uses as much as digits as its factorization.

2042189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2042189 is about 1429.0517835264. The cubic root of 2042189 is about 126.8718611663.

The spelling of 2042189 in words is "two million, forty-two thousand, one hundred eighty-nine".