41816161 has 4 divisors (see below), whose sum is σ = 41880852. Its totient is φ = 41751472.

The previous prime is 41816153. The next prime is 41816227. The reversal of 41816161 is 16161814.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16161814 = 2 ⋅8080907.

It can be written as a sum of positive squares in 2 ways, for example, as 4177936 + 37638225 = 2044^2 + 6135^2 .

It is a cyclic number.

It is not a de Polignac number, because 41816161 - 2³ = 41816153 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41816101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31366 + ... + 32671.

It is an arithmetic number, because the mean of its divisors is an integer number (10470213).

Almost surely, 2^41816161 is an apocalyptic number.

It is an amenable number.

41816161 is a deficient number, since it is larger than the sum of its proper divisors (64691).

41816161 is an equidigital number, since it uses as much as digits as its factorization.

41816161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64690.

The product of its digits is 1152, while the sum is 28.

The square root of 41816161 is about 6466.5416568673. The cubic root of 41816161 is about 347.0947566273.

Adding to 41816161 its reverse (16161814), we get a palindrome (57977975).

It can be divided in two parts, 41816 and 161, that multiplied together give a palindrome (6732376).

The spelling of 41816161 in words is "forty-one million, eight hundred sixteen thousand, one hundred sixty-one".