41845 has 4 divisors (see below), whose sum is σ = 50220. Its totient is φ = 33472.

The previous prime is 41843. The next prime is 41849. The reversal of 41845 is 54814.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54814 = 2 ⋅27407.

It can be written as a sum of positive squares in 2 ways, for example, as 22801 + 19044 = 151^2 + 138^2 .

It is a cyclic number.

It is not a de Polignac number, because 41845 - 2¹ = 41843 is a prime.

41845 is a lucky number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4180 + ... + 4189.

It is an arithmetic number, because the mean of its divisors is an integer number (12555).

2⁴¹⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

41845 is a deficient number, since it is larger than the sum of its proper divisors (8375).

41845 is an equidigital number, since it uses as much as digits as its factorization.

41845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8374.

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

The square root of 41845 is about 204.5605044968. The cubic root of 41845 is about 34.7174530931.

It can be divided in two parts, 4 and 1845, that added together give a square (1849 = 43²).

The spelling of 41845 in words is "forty-one thousand, eight hundred forty-five".