42108543 has 6 divisors (see below), whose sum is σ = 60823464. Its totient is φ = 28072356.

The previous prime is 42108533. The next prime is 42108557. The reversal of 42108543 is 34580124.

42108543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42108543 - 2⁴ = 42108527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42108533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2339355 + ... + 2339372.

It is an arithmetic number, because the mean of its divisors is an integer number (10137244).

Almost surely, 2^42108543 is an apocalyptic number.

42108543 is a deficient number, since it is larger than the sum of its proper divisors (18714921).

42108543 is a wasteful number, since it uses less digits than its factorization.

42108543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4678733 (or 4678730 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 42108543 is about 6489.1095691166. The cubic root of 42108543 is about 347.9018500453.

Adding to 42108543 its reverse (34580124), we get a palindrome (76688667).

The spelling of 42108543 in words is "forty-two million, one hundred eight thousand, five hundred forty-three".