172160226 has 36 divisors (see below), whose sum is σ = 433916262. Its totient is φ = 49188384.

The previous prime is 172160213. The next prime is 172160243. The reversal of 172160226 is 622061271.

172160226 is a `hidden beast` number, since 17 + 21 + 602 + 26 = 666.

It can be written as a sum of positive squares in only one way, i.e., 168974001 + 3186225 = 12999^2 + 1785^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 172160226.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 96715 + ... + 98478.

Almost surely, 2^172160226 is an apocalyptic number.

172160226 is an abundant number, since it is smaller than the sum of its proper divisors (261756036).

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

172160226 is a wasteful number, since it uses less digits than its factorization.

172160226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195215 (or 195205 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 172160226 is about 13120.9841856471. The cubic root of 172160226 is about 556.3024099757.

The spelling of 172160226 in words is "one hundred seventy-two million, one hundred sixty thousand, two hundred twenty-six".