226156 has 24 divisors (see below), whose sum is σ = 465696. Its totient is φ = 94080.

The previous prime is 226141. The next prime is 226169. The reversal of 226156 is 651622.

It is a super-2 number, since 2×226156² = 102293072672, which contains 22 as substring.

It is a nialpdrome in base 12.

It is an unprimeable number.

226156 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 1050 + ... + 1246.

It is an arithmetic number, because the mean of its divisors is an integer number (19404).

2²²⁶¹⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 226156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232848).

226156 is an abundant number, since it is smaller than the sum of its proper divisors (239540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

226156 is a wasteful number, since it uses less digits than its factorization.

226156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 247 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 226156 is about 475.5586188894. The cubic root of 226156 is about 60.9260054147.

Adding to 226156 its reverse (651622), we get a palindrome (877778).

The spelling of 226156 in words is "two hundred twenty-six thousand, one hundred fifty-six".