2042149 has 2 divisors, whose sum is σ = 2042150. Its totient is φ = 2042148.

The previous prime is 2042129. The next prime is 2042153. The reversal of 2042149 is 9412402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1979649 + 62500 = 1407^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042149 - 2⁷ = 2042021 is a prime.

It is equal to p₁₅₁₈₅₂ and since 2042149 and 151852 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 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, 1021074 + 1021075.

It is an arithmetic number, because the mean of its divisors is an integer number (1021075).

2^2042149 is an apocalyptic number.

It is an amenable number.

2042149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042149 is an equidigital number, since it uses as much as digits as its factorization.

2042149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2042149 is about 1429.0377881638. The cubic root of 2042149 is about 126.8710328218.

The spelling of 2042149 in words is "two million, forty-two thousand, one hundred forty-nine".