226215 has 24 divisors (see below), whose sum is σ = 428688. Its totient is φ = 109440.

The previous prime is 226201. The next prime is 226217. The reversal of 226215 is 512622.

It is not a de Polignac number, because 226215 - 2⁴ = 226199 is a prime.

226215 is a lucky 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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 267 + ... + 723.

It is an arithmetic number, because the mean of its divisors is an integer number (17862).

2²²⁶²¹⁵ is an apocalyptic number.

226215 is a deficient number, since it is larger than the sum of its proper divisors (202473).

226215 is a wasteful number, since it uses less digits than its factorization.

226215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 476 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 226215 is about 475.6206471549. The cubic root of 226215 is about 60.9313031174.

Adding to 226215 its reverse (512622), we get a palindrome (738837).

It can be divided in two parts, 2262 and 15, that multiplied together give a triangular number (33930 = T₂₆₀).

The spelling of 226215 in words is "two hundred twenty-six thousand, two hundred fifteen".