172253227 has 4 divisors (see below), whose sum is σ = 176259160. Its totient is φ = 168247296.

The previous prime is 172253161. The next prime is 172253239. The reversal of 172253227 is 722352271.

172253227 is nontrivially palindromic in base 9.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722352271 = 29 ⋅24908699.

It is a cyclic number.

It is not a de Polignac number, because 172253227 - 2¹¹ = 172251179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172253287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2002902 + ... + 2002987.

It is an arithmetic number, because the mean of its divisors is an integer number (44064790).

Almost surely, 2^172253227 is an apocalyptic number.

172253227 is a deficient number, since it is larger than the sum of its proper divisors (4005933).

172253227 is an equidigital number, since it uses as much as digits as its factorization.

172253227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4005932.

The product of its digits is 11760, while the sum is 31.

The square root of 172253227 is about 13124.5276867398. The cubic root of 172253227 is about 556.4025635136.

The spelling of 172253227 in words is "one hundred seventy-two million, two hundred fifty-three thousand, two hundred twenty-seven".