41845813 has 2 divisors, whose sum is σ = 41845814. Its totient is φ = 41845812.

The previous prime is 41845807. The next prime is 41845831. The reversal of 41845813 is 31854814.

41845813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (41845831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41242084 + 603729 = 6422^2 + 777^2 .

It is a cyclic number.

It is not a de Polignac number, because 41845813 - 2⁵ = 41845781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41845883) 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, 20922906 + 20922907.

It is an arithmetic number, because the mean of its divisors is an integer number (20922907).

Almost surely, 2^41845813 is an apocalyptic number.

It is an amenable number.

41845813 is a deficient number, since it is larger than the sum of its proper divisors (1).

41845813 is an equidigital number, since it uses as much as digits as its factorization.

41845813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15360, while the sum is 34.

The square root of 41845813 is about 6468.8339753003. The cubic root of 41845813 is about 347.1767793168.

Subtracting from 41845813 its reverse (31854814), we obtain a palindrome (9990999).

The spelling of 41845813 in words is "forty-one million, eight hundred forty-five thousand, eight hundred thirteen".