41205181 has 2 divisors, whose sum is σ = 41205182. Its totient is φ = 41205180.

The previous prime is 41205173. The next prime is 41205191. The reversal of 41205181 is 18150214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32024281 + 9180900 = 5659^2 + 3030^2 .

It is a cyclic number.

It is not a de Polignac number, because 41205181 - 2³ = 41205173 is a prime.

It is a super-2 number, since 2×41205181² = 3395733882485522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41205191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20602590 + 20602591.

It is an arithmetic number, because the mean of its divisors is an integer number (20602591).

Almost surely, 2^41205181 is an apocalyptic number.

It is an amenable number.

41205181 is a deficient number, since it is larger than the sum of its proper divisors (1).

41205181 is an equidigital number, since it uses as much as digits as its factorization.

41205181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 41205181 is about 6419.1261866394. The cubic root of 41205181 is about 345.3959774608.

Adding to 41205181 its reverse (18150214), we get a palindrome (59355395).

The spelling of 41205181 in words is "forty-one million, two hundred five thousand, one hundred eighty-one".