2168223173 has 8 divisors (see below), whose sum is σ = 2249533440. Its totient is φ = 2087623440.

The previous prime is 2168223139. The next prime is 2168223203. The reversal of 2168223173 is 3713228612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2168223173 - 2²² = 2164028869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168223373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171413 + ... + 183626.

It is an arithmetic number, because the mean of its divisors is an integer number (281191680).

Almost surely, 2^2168223173 is an apocalyptic number.

It is an amenable number.

2168223173 is a deficient number, since it is larger than the sum of its proper divisors (81310267).

2168223173 is a wasteful number, since it uses less digits than its factorization.

2168223173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355267.

The product of its digits is 24192, while the sum is 35.

The square root of 2168223173 is about 46564.1833709129. The cubic root of 2168223173 is about 1294.2991338790.

The spelling of 2168223173 in words is "two billion, one hundred sixty-eight million, two hundred twenty-three thousand, one hundred seventy-three".