845041 has 2 divisors, whose sum is σ = 845042. Its totient is φ = 845040.

The previous prime is 845027. The next prime is 845069. The reversal of 845041 is 140548.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 531441 + 313600 = 729^2 + 560^2 .

It is a cyclic number.

It is not a de Polignac number, because 845041 - 2⁷ = 844913 is a prime.

845041 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (845021) 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, 422520 + 422521.

It is an arithmetic number, because the mean of its divisors is an integer number (422521).

2⁸⁴⁵⁰⁴¹ is an apocalyptic number.

It is an amenable number.

845041 is a deficient number, since it is larger than the sum of its proper divisors (1).

845041 is an equidigital number, since it uses as much as digits as its factorization.

845041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 845041 is about 919.2611163320. The cubic root of 845041 is about 94.5422484960.

Adding to 845041 its reverse (140548), we get a palindrome (985589).

The spelling of 845041 in words is "eight hundred forty-five thousand, forty-one".