213226 has 16 divisors (see below), whose sum is σ = 352800. Its totient is φ = 96048.

The previous prime is 213223. The next prime is 213229. The reversal of 213226 is 622312.

It is an interprime number because it is at equal distance from previous prime (213223) and next prime (213229).

It is not an unprimeable number, because it can be changed into a prime (213223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1465 + ... + 1603.

It is an arithmetic number, because the mean of its divisors is an integer number (22050).

2²¹³²²⁶ is an apocalyptic number.

213226 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

213226 is a deficient number, since it is larger than the sum of its proper divisors (139574).

213226 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 11 representation: 213226 = (136222)₁₁.

213226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213.

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

The square root of 213226 is about 461.7640089916. The cubic root of 213226 is about 59.7420406874.

Adding to 213226 its reverse (622312), we get a palindrome (835538).

The spelling of 213226 in words is "two hundred thirteen thousand, two hundred twenty-six".