41540161 has 4 divisors (see below), whose sum is σ = 44735572. Its totient is φ = 38344752.

The previous prime is 41540141. The next prime is 41540171. The reversal of 41540161 is 16104514.

41540161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3779136 + 37761025 = 1944^2 + 6145^2 .

It is a cyclic number.

It is not a de Polignac number, because 41540161 - 2⁷ = 41540033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41540101) 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 in 3 ways as a sum of consecutive naturals, for example, 1597686 + ... + 1597711.

It is an arithmetic number, because the mean of its divisors is an integer number (11183893).

Almost surely, 2^41540161 is an apocalyptic number.

It is an amenable number.

41540161 is a deficient number, since it is larger than the sum of its proper divisors (3195411).

41540161 is a wasteful number, since it uses less digits than its factorization.

41540161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3195410.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 41540161 is about 6445.1657077223. The cubic root of 41540161 is about 346.3294249715.

Adding to 41540161 its reverse (16104514), we get a palindrome (57644675).

The spelling of 41540161 in words is "forty-one million, five hundred forty thousand, one hundred sixty-one".