2143441 has 2 divisors, whose sum is σ = 2143442. Its totient is φ = 2143440.

The previous prime is 2143417. The next prime is 2143451. The reversal of 2143441 is 1443412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1971216 + 172225 = 1404^2 + 415^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143441 - 2⁷ = 2143313 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2143451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071720 + 1071721.

It is an arithmetic number, because the mean of its divisors is an integer number (1071721).

2^2143441 is an apocalyptic number.

It is an amenable number.

2143441 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143441 is an equidigital number, since it uses as much as digits as its factorization.

2143441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 384, while the sum is 19.

The square root of 2143441 is about 1464.0495210204. The cubic root of 2143441 is about 128.9349069671.

Adding to 2143441 its reverse (1443412), we get a palindrome (3586853).

It can be divided in two parts, 214 and 3441, that added together give a triangular number (3655 = T₈₅).

The spelling of 2143441 in words is "two million, one hundred forty-three thousand, four hundred forty-one".