1042057543 has 4 divisors (see below), whose sum is σ = 1042707600. Its totient is φ = 1041407488.

The previous prime is 1042057537. The next prime is 1042057547. The reversal of 1042057543 is 3457502401.

1042057543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1042057543 - 2⁹ = 1042057031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042057547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322618 + ... + 325831.

It is an arithmetic number, because the mean of its divisors is an integer number (260676900).

Almost surely, 2^1042057543 is an apocalyptic number.

1042057543 is a deficient number, since it is larger than the sum of its proper divisors (650057).

1042057543 is an equidigital number, since it uses as much as digits as its factorization.

1042057543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650056.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 1042057543 is about 32280.9160805576. The cubic root of 1042057543 is about 1013.8271108095.

Adding to 1042057543 its reverse (3457502401), we get a palindrome (4499559944).

The spelling of 1042057543 in words is "one billion, forty-two million, fifty-seven thousand, five hundred forty-three".