165226 has 4 divisors (see below), whose sum is σ = 247842. Its totient is φ = 82612.

The previous prime is 165211. The next prime is 165229. The reversal of 165226 is 622561.

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

It can be written as a sum of positive squares in only one way, i.e., 123201 + 42025 = 351^2 + 205^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 165197 and 165206.

It is not an unprimeable number, because it can be changed into a prime (165229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41305 + ... + 41308.

2¹⁶⁵²²⁶ is an apocalyptic number.

165226 is a deficient number, since it is larger than the sum of its proper divisors (82616).

165226 is an equidigital number, since it uses as much as digits as its factorization.

165226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82615.

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

The square root of 165226 is about 406.4800118087. The cubic root of 165226 is about 54.8730958429.

Adding to 165226 its reverse (622561), we get a palindrome (787787).

The spelling of 165226 in words is "one hundred sixty-five thousand, two hundred twenty-six".