1040543 has 12 divisors (see below), whose sum is σ = 1247568. Its totient is φ = 850080.

The previous prime is 1040531. The next prime is 1040563. The reversal of 1040543 is 3450401.

It is not a de Polignac number, because 1040543 - 2¹⁴ = 1024159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040503) 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 in 11 ways as a sum of consecutive naturals, for example, 3563 + ... + 3843.

It is an arithmetic number, because the mean of its divisors is an integer number (103964).

2^1040543 is an apocalyptic number.

1040543 is a deficient number, since it is larger than the sum of its proper divisors (207025).

1040543 is an equidigital number, since it uses as much as digits as its factorization.

1040543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 311 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1040543 is about 1020.0700956307. The cubic root of 1040543 is about 101.3335701845. Note that the first 3 decimals are identical.

Adding to 1040543 its reverse (3450401), we get a palindrome (4490944).

The spelling of 1040543 in words is "one million, forty thousand, five hundred forty-three".