217332241 has 16 divisors (see below), whose sum is σ = 261861760. Its totient is φ = 176204160.

The previous prime is 217332217. The next prime is 217332251. The reversal of 217332241 is 142233712.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 217332241 - 2⁵ = 217332209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (217332211) 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 15 ways as a sum of consecutive naturals, for example, 163861 + ... + 165181.

It is an arithmetic number, because the mean of its divisors is an integer number (16366360).

Almost surely, 2^217332241 is an apocalyptic number.

It is an amenable number.

217332241 is a deficient number, since it is larger than the sum of its proper divisors (44529519).

217332241 is a wasteful number, since it uses less digits than its factorization.

217332241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584.

The product of its digits is 2016, while the sum is 25.

The square root of 217332241 is about 14742.1925438518. The cubic root of 217332241 is about 601.2310290333.

Adding to 217332241 its reverse (142233712), we get a palindrome (359565953).

The spelling of 217332241 in words is "two hundred seventeen million, three hundred thirty-two thousand, two hundred forty-one".