2123143 has 4 divisors (see below), whose sum is σ = 2316168. Its totient is φ = 1930120.

The previous prime is 2123141. The next prime is 2123161. The reversal of 2123143 is 3413212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2123143 - 2¹ = 2123141 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 (2123141) 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, 96496 + ... + 96517.

It is an arithmetic number, because the mean of its divisors is an integer number (579042).

2^2123143 is an apocalyptic number.

2123143 is a deficient number, since it is larger than the sum of its proper divisors (193025).

2123143 is a wasteful number, since it uses less digits than its factorization.

2123143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193024.

The product of its digits is 144, while the sum is 16.

The square root of 2123143 is about 1457.1008887514. The cubic root of 2123143 is about 128.5266186586.

Adding to 2123143 its reverse (3413212), we get a palindrome (5536355).

The spelling of 2123143 in words is "two million, one hundred twenty-three thousand, one hundred forty-three".