2172114173 has 8 divisors (see below), whose sum is σ = 2177402808. Its totient is φ = 2166833664.

The previous prime is 2172114167. The next prime is 2172114209. The reversal of 2172114173 is 3714112712.

It can be written as a sum of positive squares in 4 ways, for example, as 195244729 + 1976869444 = 13973^2 + 44462^2 .

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 2172114173 - 2¹⁴ = 2172097789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172114073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1221461 + ... + 1223237.

It is an arithmetic number, because the mean of its divisors is an integer number (272175351).

Almost surely, 2^2172114173 is an apocalyptic number.

It is an amenable number.

2172114173 is a deficient number, since it is larger than the sum of its proper divisors (5288635).

2172114173 is a wasteful number, since it uses less digits than its factorization.

2172114173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4063.

The product of its digits is 2352, while the sum is 29.

The square root of 2172114173 is about 46605.9456829276. The cubic root of 2172114173 is about 1295.0729023821.

Adding to 2172114173 its reverse (3714112712), we get a palindrome (5886226885).

The spelling of 2172114173 in words is "two billion, one hundred seventy-two million, one hundred fourteen thousand, one hundred seventy-three".