451042543 has 8 divisors (see below), whose sum is σ = 529409312. Its totient is φ = 376158816.

The previous prime is 451042541. The next prime is 451042547. The reversal of 451042543 is 345240154.

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

It is a cyclic number.

It is not a de Polignac number, because 451042543 - 2¹ = 451042541 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 (451042541) 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, 870480 + ... + 870997.

It is an arithmetic number, because the mean of its divisors is an integer number (66176164).

Almost surely, 2^451042543 is an apocalyptic number.

451042543 is a deficient number, since it is larger than the sum of its proper divisors (78366769).

451042543 is a wasteful number, since it uses less digits than its factorization.

451042543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741521.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 451042543 is about 21237.7621937906. The cubic root of 451042543 is about 766.9007615532.

Adding to 451042543 its reverse (345240154), we get a palindrome (796282697).

The spelling of 451042543 in words is "four hundred fifty-one million, forty-two thousand, five hundred forty-three".