41281 has 2 divisors, whose sum is σ = 41282. Its totient is φ = 41280.
The previous prime is 41269. The next prime is 41299. The reversal of 41281 is 18214.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 34225 + 7056 = 185^2 + 84^2 .
It is a cyclic number.
It is not a de Polignac number, because 41281 - 211 = 39233 is a prime.
It is a super-2 number, since 2×412812 = 3408241922, which contains 22 as substring.
41281 is a lucky number.
It is not a weakly prime, because it can be changed into another prime (41201) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20640 + 20641.
It is an arithmetic number, because the mean of its divisors is an integer number (20641).
241281 is an apocalyptic number.
41281 is the 129-th centered pentagonal number.
It is an amenable number.
41281 is a deficient number, since it is larger than the sum of its proper divisors (1).
41281 is an equidigital number, since it uses as much as digits as its factorization.
41281 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 64, while the sum is 16.
The square root of 41281 is about 203.1772625074. The cubic root of 41281 is about 34.5607694623.
Adding to 41281 its reverse (18214), we get a palindrome (59495).
The spelling of 41281 in words is "forty-one thousand, two hundred eighty-one".
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