243316 has 12 divisors (see below), whose sum is σ = 433440. Its totient is φ = 119480.

The previous prime is 243311. The next prime is 243343. The reversal of 243316 is 613342.

It is a junction number, because it is equal to n+sod(n) for n = 243293 and 243302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243311) 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 3 ways as a sum of consecutive naturals, for example, 280 + ... + 751.

It is an arithmetic number, because the mean of its divisors is an integer number (36120).

2²⁴³³¹⁶ is an apocalyptic number.

It is an amenable number.

243316 is a deficient number, since it is larger than the sum of its proper divisors (190124).

243316 is a wasteful number, since it uses less digits than its factorization.

243316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1092 counting only the distinct ones).

The product of its digits is 432, while the sum is 19.

The square root of 243316 is about 493.2707167469. The cubic root of 243316 is about 62.4295526245.

Adding to 243316 its reverse (613342), we get a palindrome (856658).

The spelling of 243316 in words is "two hundred forty-three thousand, three hundred sixteen".