2173143 has 8 divisors (see below), whose sum is σ = 3311488. Its totient is φ = 1241784.

The previous prime is 2173141. The next prime is 2173151. The reversal of 2173143 is 3413712.

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

It is not a de Polignac number, because 2173143 - 2¹ = 2173141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 103483 = 2173143 / (2 + 1 + 7 + 3 + 1 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173141) 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, 51721 + ... + 51762.

It is an arithmetic number, because the mean of its divisors is an integer number (413936).

2^2173143 is an apocalyptic number.

2173143 is a deficient number, since it is larger than the sum of its proper divisors (1138345).

2173143 is a wasteful number, since it uses less digits than its factorization.

2173143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103493.

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

The square root of 2173143 is about 1474.1584039716. The cubic root of 2173143 is about 129.5277341552.

Adding to 2173143 its reverse (3413712), we get a palindrome (5586855).

The spelling of 2173143 in words is "two million, one hundred seventy-three thousand, one hundred forty-three".