173228605 has 32 divisors (see below), whose sum is σ = 243855360. Its totient is φ = 116781120.

The previous prime is 173228603. The next prime is 173228633. The reversal of 173228605 is 506822371.

It is a happy number.

It is not a de Polignac number, because 173228605 - 2¹ = 173228603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173228603) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 47352 + ... + 50878.

It is an arithmetic number, because the mean of its divisors is an integer number (7620480).

Almost surely, 2^173228605 is an apocalyptic number.

It is an amenable number.

173228605 is a deficient number, since it is larger than the sum of its proper divisors (70626755).

173228605 is a wasteful number, since it uses less digits than its factorization.

173228605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3609.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 173228605 is about 13161.6338271508. The cubic root of 173228605 is about 557.4507909672.

The spelling of 173228605 in words is "one hundred seventy-three million, two hundred twenty-eight thousand, six hundred five".