282213 has 6 divisors (see below), whose sum is σ = 407654. Its totient is φ = 188136.

The previous prime is 282167. The next prime is 282221. The reversal of 282213 is 312282.

It is a happy number.

282213 is nontrivially palindromic in base 13.

It can be written as a sum of positive squares in only one way, i.e., 263169 + 19044 = 513^2 + 138^2 .

It is not a de Polignac number, because 282213 - 2¹⁰ = 281189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (282253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15670 + ... + 15687.

2²⁸²²¹³ is an apocalyptic number.

It is an amenable number.

282213 is a deficient number, since it is larger than the sum of its proper divisors (125441).

282213 is a wasteful number, since it uses less digits than its factorization.

282213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31363 (or 31360 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 282213 is about 531.2372351408. The cubic root of 282213 is about 65.5932281578.

Adding to 282213 its reverse (312282), we get a palindrome (594495).

It can be divided in two parts, 28221 and 3, that added together give a square (28224 = 168²).

The spelling of 282213 in words is "two hundred eighty-two thousand, two hundred thirteen".