172227 has 16 divisors (see below), whose sum is σ = 266112. Its totient is φ = 97920.

The previous prime is 172223. The next prime is 172243. The reversal of 172227 is 722271.

It is not a de Polignac number, because 172227 - 2² = 172223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408 + ... + 714.

It is an arithmetic number, because the mean of its divisors is an integer number (16632).

2¹⁷²²²⁷ is an apocalyptic number.

172227 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

172227 is a deficient number, since it is larger than the sum of its proper divisors (93885).

172227 is a wasteful number, since it uses less digits than its factorization.

172227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338.

The product of its digits is 392, while the sum is 21.

The square root of 172227 is about 415.0024096316. The cubic root of 172227 is about 55.6374323093.

Adding to 172227 its reverse (722271), we get a palindrome (894498).

The spelling of 172227 in words is "one hundred seventy-two thousand, two hundred twenty-seven", and thus it is an iban number.