1043543 has 2 divisors, whose sum is σ = 1043544. Its totient is φ = 1043542.

The previous prime is 1043531. The next prime is 1043557. The reversal of 1043543 is 3453401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1043543 - 2⁶ = 1043479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1043513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521771 + 521772.

It is an arithmetic number, because the mean of its divisors is an integer number (521772).

2^1043543 is an apocalyptic number.

1043543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043543 is an equidigital number, since it uses as much as digits as its factorization.

1043543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1043543 is about 1021.5395244434. The cubic root of 1043543 is about 101.4308620221.

Adding to 1043543 its reverse (3453401), we get a palindrome (4496944).

The spelling of 1043543 in words is "one million, forty-three thousand, five hundred forty-three".