155227 has 8 divisors (see below), whose sum is σ = 171936. Its totient is φ = 139392.

The previous prime is 155219. The next prime is 155231. The reversal of 155227 is 722551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155227 - 2³ = 155219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155198 and 155207.

It is not an unprimeable number, because it can be changed into a prime (155027) by changing a digit.

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, 193 + ... + 589.

It is an arithmetic number, because the mean of its divisors is an integer number (21492).

2¹⁵⁵²²⁷ is an apocalyptic number.

155227 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

155227 is a deficient number, since it is larger than the sum of its proper divisors (16709).

155227 is a wasteful number, since it uses less digits than its factorization.

155227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437.

The product of its digits is 700, while the sum is 22.

The square root of 155227 is about 393.9885785147. The cubic root of 155227 is about 53.7430638246.

Adding to 155227 its reverse (722551), we get a palindrome (877778).

The spelling of 155227 in words is "one hundred fifty-five thousand, two hundred twenty-seven".