1006543043 has 8 divisors (see below), whose sum is σ = 1145788416. Its totient is φ = 875254600.

The previous prime is 1006543039. The next prime is 1006543091. The reversal of 1006543043 is 3403456001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1006543043 - 2² = 1006543039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1006543033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1988963 + ... + 1989468.

It is an arithmetic number, because the mean of its divisors is an integer number (143223552).

Almost surely, 2^1006543043 is an apocalyptic number.

1006543043 is a deficient number, since it is larger than the sum of its proper divisors (139245373).

1006543043 is a wasteful number, since it uses less digits than its factorization.

1006543043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3978465.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1006543043 is about 31726.0625196383. The cubic root of 1006543043 is about 1002.1762747259.

Adding to 1006543043 its reverse (3403456001), we get a palindrome (4409999044).

The spelling of 1006543043 in words is "one billion, six million, five hundred forty-three thousand, forty-three".