2042171 has 2 divisors, whose sum is σ = 2042172. Its totient is φ = 2042170.

The previous prime is 2042153. The next prime is 2042179. The reversal of 2042171 is 1712402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2042171 - 2⁶ = 2042107 is a prime.

It is not a weakly prime, because it can be changed into another prime (2042179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021085 + 1021086.

It is an arithmetic number, because the mean of its divisors is an integer number (1021086).

2^2042171 is an apocalyptic number.

2042171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042171 is an equidigital number, since it uses as much as digits as its factorization.

2042171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 2042171 is about 1429.0454856302. The cubic root of 2042171 is about 126.8714884126.

Adding to 2042171 its reverse (1712402), we get a palindrome (3754573).

The spelling of 2042171 in words is "two million, forty-two thousand, one hundred seventy-one".