155226 has 16 divisors (see below), whose sum is σ = 318528. Its totient is φ = 50400.

The previous prime is 155219. The next prime is 155231. The reversal of 155226 is 622551.

It is a super-2 number, since 2×155226² = 48190222152, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70 + ... + 561.

It is an arithmetic number, because the mean of its divisors is an integer number (19908).

2¹⁵⁵²²⁶ is an apocalyptic number.

155226 is an abundant number, since it is smaller than the sum of its proper divisors (163302).

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

155226 is a wasteful number, since it uses less digits than its factorization.

155226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677.

The product of its digits is 600, while the sum is 21.

The square root of 155226 is about 393.9873094403. The cubic root of 155226 is about 53.7429484169.

Adding to 155226 its reverse (622551), we get a palindrome (777777).

The spelling of 155226 in words is "one hundred fifty-five thousand, two hundred twenty-six".