2143331 has 2 divisors, whose sum is σ = 2143332. Its totient is φ = 2143330.

The previous prime is 2143319. The next prime is 2143369. The reversal of 2143331 is 1333412.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2143331 is a prime.

It is a super-2 number, since 2×2143331² = 9187735551122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2143381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071665 + 1071666.

It is an arithmetic number, because the mean of its divisors is an integer number (1071666).

2^2143331 is an apocalyptic number.

2143331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143331 is an equidigital number, since it uses as much as digits as its factorization.

2143331 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2143331 is about 1464.0119535031. The cubic root of 2143331 is about 128.9327013108.

Adding to 2143331 its reverse (1333412), we get a palindrome (3476743).

The spelling of 2143331 in words is "two million, one hundred forty-three thousand, three hundred thirty-one".