173223201 has 4 divisors (see below), whose sum is σ = 230964272. Its totient is φ = 115482132.

The previous prime is 173223191. The next prime is 173223203. The reversal of 173223201 is 102322371.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 173223201 - 2⁹ = 173222689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (173223203) 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, 28870531 + ... + 28870536.

It is an arithmetic number, because the mean of its divisors is an integer number (57741068).

Almost surely, 2^173223201 is an apocalyptic number.

It is an amenable number.

173223201 is a deficient number, since it is larger than the sum of its proper divisors (57741071).

173223201 is an equidigital number, since it uses as much as digits as its factorization.

173223201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57741070.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 173223201 is about 13161.4285318882. The cubic root of 173223201 is about 557.4449942044. Note that the first 3 decimals are identical.

Adding to 173223201 its reverse (102322371), we get a palindrome (275545572).

The spelling of 173223201 in words is "one hundred seventy-three million, two hundred twenty-three thousand, two hundred one".