2020171 has 2 divisors, whose sum is σ = 2020172. Its totient is φ = 2020170.

The previous prime is 2020153. The next prime is 2020181. The reversal of 2020171 is 1710202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2020171 - 2⁷ = 2020043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2020181) 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, 1010085 + 1010086.

It is an arithmetic number, because the mean of its divisors is an integer number (1010086).

2^2020171 is an apocalyptic number.

2020171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020171 is an equidigital number, since it uses as much as digits as its factorization.

2020171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 2020171 is about 1421.3271966722. The cubic root of 2020171 is about 126.4142534199.

Adding to 2020171 its reverse (1710202), we get a palindrome (3730373).

The spelling of 2020171 in words is "two million, twenty thousand, one hundred seventy-one".