143540543 has 2 divisors, whose sum is σ = 143540544. Its totient is φ = 143540542.

The previous prime is 143540533. The next prime is 143540563. The reversal of 143540543 is 345045341.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 143540543 - 2²⁰ = 142491967 is a prime.

It is a super-3 number, since 3×143540543³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143540533) 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 as a sum of consecutive naturals, namely, 71770271 + 71770272.

It is an arithmetic number, because the mean of its divisors is an integer number (71770272).

Almost surely, 2^143540543 is an apocalyptic number.

143540543 is a deficient number, since it is larger than the sum of its proper divisors (1).

143540543 is an equidigital number, since it uses as much as digits as its factorization.

143540543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 143540543 is about 11980.8406633258. The cubic root of 143540543 is about 523.5902228682.

Adding to 143540543 its reverse (345045341), we get a palindrome (488585884).

The spelling of 143540543 in words is "one hundred forty-three million, five hundred forty thousand, five hundred forty-three".