2056841 has 2 divisors, whose sum is σ = 2056842. Its totient is φ = 2056840.

The previous prime is 2056829. The next prime is 2056843. The reversal of 2056841 is 1486502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1201216 + 855625 = 1096^2 + 925^2 .

It is a cyclic number.

It is not a de Polignac number, because 2056841 - 2⁶ = 2056777 is a prime.

Together with 2056843, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2056841.

It is not a weakly prime, because it can be changed into another prime (2056843) 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, 1028420 + 1028421.

It is an arithmetic number, because the mean of its divisors is an integer number (1028421).

2^2056841 is an apocalyptic number.

It is an amenable number.

2056841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2056841 is an equidigital number, since it uses as much as digits as its factorization.

2056841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2056841 is about 1434.1690974219. The cubic root of 2056841 is about 127.1745589785.

The spelling of 2056841 in words is "two million, fifty-six thousand, eight hundred forty-one".