216241163 has 4 divisors (see below), whose sum is σ = 216770280. Its totient is φ = 215712048.

The previous prime is 216241159. The next prime is 216241169. The reversal of 216241163 is 361142612.

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

It is a cyclic number.

It is not a de Polignac number, because 216241163 - 2² = 216241159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216241169) 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, 263945 + ... + 264762.

It is an arithmetic number, because the mean of its divisors is an integer number (54192570).

Almost surely, 2^216241163 is an apocalyptic number.

216241163 is a deficient number, since it is larger than the sum of its proper divisors (529117).

216241163 is an equidigital number, since it uses as much as digits as its factorization.

216241163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529116.

The product of its digits is 1728, while the sum is 26.

The square root of 216241163 is about 14705.1406997689. The cubic root of 216241163 is about 600.2232160215.

Adding to 216241163 its reverse (361142612), we get a palindrome (577383775).

The spelling of 216241163 in words is "two hundred sixteen million, two hundred forty-one thousand, one hundred sixty-three".