226213 has 4 divisors (see below), whose sum is σ = 243628. Its totient is φ = 208800.

The previous prime is 226201. The next prime is 226217. The reversal of 226213 is 312622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 79524 + 146689 = 282^2 + 383^2 .

It is a cyclic number.

It is not a de Polignac number, because 226213 - 2¹³ = 218021 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 (226217) 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, 8688 + ... + 8713.

It is an arithmetic number, because the mean of its divisors is an integer number (60907).

2²²⁶²¹³ is an apocalyptic number.

It is an amenable number.

226213 is a deficient number, since it is larger than the sum of its proper divisors (17415).

226213 is a wasteful number, since it uses less digits than its factorization.

226213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17414.

The product of its digits is 144, while the sum is 16.

The square root of 226213 is about 475.6185446342. The cubic root of 226213 is about 60.9311235493.

Adding to 226213 its reverse (312622), we get a palindrome (538835).

The spelling of 226213 in words is "two hundred twenty-six thousand, two hundred thirteen".