4120542543 has 16 divisors (see below), whose sum is σ = 5937599360. Its totient is φ = 2526751584.

The previous prime is 4120542541. The next prime is 4120542577. The reversal of 4120542543 is 3452450214.

It is not a de Polignac number, because 4120542543 - 2¹ = 4120542541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4120542543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4120542541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175633 + ... + 197706.

It is an arithmetic number, because the mean of its divisors is an integer number (371099960).

Almost surely, 2^4120542543 is an apocalyptic number.

4120542543 is a deficient number, since it is larger than the sum of its proper divisors (1817056817).

4120542543 is a wasteful number, since it uses less digits than its factorization.

4120542543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373638.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 4120542543 is about 64191.4522580694. The cubic root of 4120542543 is about 1603.1892821953.

Adding to 4120542543 its reverse (3452450214), we get a palindrome (7572992757).

The spelling of 4120542543 in words is "four billion, one hundred twenty million, five hundred forty-two thousand, five hundred forty-three".