216341 has 4 divisors (see below), whose sum is σ = 220992. Its totient is φ = 211692.

The previous prime is 216329. The next prime is 216347. The reversal of 216341 is 143612.

216341 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 216341 - 2¹⁰ = 215317 is a prime.

It is an Ulam number.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2255 + ... + 2348.

It is an arithmetic number, because the mean of its divisors is an integer number (55248).

2²¹⁶³⁴¹ is an apocalyptic number.

It is an amenable number.

216341 is a deficient number, since it is larger than the sum of its proper divisors (4651).

216341 is an equidigital number, since it uses as much as digits as its factorization.

216341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4650.

The product of its digits is 144, while the sum is 17.

The square root of 216341 is about 465.1247144584. The cubic root of 216341 is about 60.0315574733.

Adding to 216341 its reverse (143612), we get a palindrome (359953).

The spelling of 216341 in words is "two hundred sixteen thousand, three hundred forty-one".