2331143 has 4 divisors (see below), whose sum is σ = 2364048. Its totient is φ = 2298240.

The previous prime is 2331139. The next prime is 2331151. The reversal of 2331143 is 3411332.

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 2331143 - 2² = 2331139 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 (2331103) 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, 16346 + ... + 16487.

It is an arithmetic number, because the mean of its divisors is an integer number (591012).

2^2331143 is an apocalyptic number.

2331143 is a deficient number, since it is larger than the sum of its proper divisors (32905).

2331143 is an equidigital number, since it uses as much as digits as its factorization.

2331143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32904.

The product of its digits is 216, while the sum is 17.

The square root of 2331143 is about 1526.8081084406. The cubic root of 2331143 is about 132.5937250719.

Adding to 2331143 its reverse (3411332), we get a palindrome (5742475).

It can be divided in two parts, 2331 and 143, that multiplied together give a palindrome (333333).

The spelling of 2331143 in words is "two million, three hundred thirty-one thousand, one hundred forty-three".