217041 has 8 divisors (see below), whose sum is σ = 315744. Its totient is φ = 131520.

The previous prime is 217033. The next prime is 217057. The reversal of 217041 is 140712.

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

It is not a de Polignac number, because 217041 - 2³ = 217033 is a prime.

217041 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 217041.

It is not an unprimeable number, because it can be changed into a prime (217001) 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, 3256 + ... + 3321.

It is an arithmetic number, because the mean of its divisors is an integer number (39468).

2²¹⁷⁰⁴¹ is an apocalyptic number.

It is an amenable number.

217041 is a deficient number, since it is larger than the sum of its proper divisors (98703).

217041 is a wasteful number, since it uses less digits than its factorization.

217041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6591.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 217041 is about 465.8765931016. The cubic root of 217041 is about 60.0962344552.

Adding to 217041 its reverse (140712), we get a palindrome (357753).

It can be divided in two parts, 2170 and 41, that added together give a triangular number (2211 = T₆₆).

The spelling of 217041 in words is "two hundred seventeen thousand, forty-one", and thus it is an iban number.