218041 has 8 divisors (see below), whose sum is σ = 229824. Its totient is φ = 206640.

The previous prime is 218021. The next prime is 218047. The reversal of 218041 is 140812.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 218041 - 2¹⁷ = 86969 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (218047) 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 7 ways as a sum of consecutive naturals, for example, 2586 + ... + 2668.

It is an arithmetic number, because the mean of its divisors is an integer number (28728).

2²¹⁸⁰⁴¹ is an apocalyptic number.

It is an amenable number.

218041 is a deficient number, since it is larger than the sum of its proper divisors (11783).

218041 is an equidigital number, since it uses as much as digits as its factorization.

218041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 218041 is about 466.9486053090. The cubic root of 218041 is about 60.1883893533.

Adding to 218041 its reverse (140812), we get a palindrome (358853).

It can be divided in two parts, 21 and 8041, that multiplied together give a palindrome (168861).

The spelling of 218041 in words is "two hundred eighteen thousand, forty-one".