2020591 has 2 divisors, whose sum is σ = 2020592. Its totient is φ = 2020590.

The previous prime is 2020561. The next prime is 2020597. The reversal of 2020591 is 1950202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2020591 - 2⁷ = 2020463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010295 + 1010296.

It is an arithmetic number, because the mean of its divisors is an integer number (1010296).

2^2020591 is an apocalyptic number.

2020591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020591 is an equidigital number, since it uses as much as digits as its factorization.

2020591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 2020591 is about 1421.4749382244. The cubic root of 2020591 is about 126.4230134551.

Adding to 2020591 its reverse (1950202), we get a palindrome (3970793).

The spelling of 2020591 in words is "two million, twenty thousand, five hundred ninety-one".