2851841 has 2 divisors, whose sum is σ = 2851842. Its totient is φ = 2851840.

The previous prime is 2851829. The next prime is 2851847. The reversal of 2851841 is 1481582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2356225 + 495616 = 1535^2 + 704^2 .

It is a cyclic number.

It is not a de Polignac number, because 2851841 - 2⁶ = 2851777 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2851847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1425920 + 1425921.

It is an arithmetic number, because the mean of its divisors is an integer number (1425921).

2^2851841 is an apocalyptic number.

It is an amenable number.

2851841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2851841 is an equidigital number, since it uses as much as digits as its factorization.

2851841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2560, while the sum is 29.

The square root of 2851841 is about 1688.7394707296. The cubic root of 2851841 is about 141.8105156312.

The spelling of 2851841 in words is "two million, eight hundred fifty-one thousand, eight hundred forty-one".