4543406243 has 4 divisors (see below), whose sum is σ = 4544104248. Its totient is φ = 4542708240.

The previous prime is 4543406207. The next prime is 4543406279. The reversal of 4543406243 is 3426043454.

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

It is an interprime number because it is at equal distance from previous prime (4543406207) and next prime (4543406279).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4543406243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4543406443) 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, 339146 + ... + 352287.

It is an arithmetic number, because the mean of its divisors is an integer number (1136026062).

Almost surely, 2^4543406243 is an apocalyptic number.

4543406243 is a deficient number, since it is larger than the sum of its proper divisors (698005).

4543406243 is an equidigital number, since it uses as much as digits as its factorization.

4543406243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698004.

The product of its (nonzero) digits is 138240, while the sum is 35.

The square root of 4543406243 is about 67404.7939170501. The cubic root of 4543406243 is about 1656.2549534481.

Adding to 4543406243 its reverse (3426043454), we get a palindrome (7969449697).

The spelling of 4543406243 in words is "four billion, five hundred forty-three million, four hundred six thousand, two hundred forty-three".