1085804543 has 4 divisors (see below), whose sum is σ = 1120830528. Its totient is φ = 1050778560.

The previous prime is 1085804537. The next prime is 1085804579. The reversal of 1085804543 is 3454085801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1085804543 - 2⁴ = 1085804527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1085804497 and 1085804506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085804593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17512946 + ... + 17513007.

It is an arithmetic number, because the mean of its divisors is an integer number (280207632).

Almost surely, 2^1085804543 is an apocalyptic number.

1085804543 is a deficient number, since it is larger than the sum of its proper divisors (35025985).

1085804543 is an equidigital number, since it uses as much as digits as its factorization.

1085804543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35025984.

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 1085804543 is about 32951.5484158180. The cubic root of 1085804543 is about 1027.8203642650.

The spelling of 1085804543 in words is "one billion, eighty-five million, eight hundred four thousand, five hundred forty-three".