1045543 has 2 divisors, whose sum is σ = 1045544. Its totient is φ = 1045542.

The previous prime is 1045529. The next prime is 1045547. The reversal of 1045543 is 3455401.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1045543 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1045547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522771 + 522772.

It is an arithmetic number, because the mean of its divisors is an integer number (522772).

2^1045543 is an apocalyptic number.

1045543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1045543 is an equidigital number, since it uses as much as digits as its factorization.

1045543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1045543 is about 1022.5179705022. The cubic root of 1045543 is about 101.4956196998.

The spelling of 1045543 in words is "one million, forty-five thousand, five hundred forty-three".