540243143 has 8 divisors (see below), whose sum is σ = 597430416. Its totient is φ = 484401600.

The previous prime is 540243079. The next prime is 540243161. The reversal of 540243143 is 341342045.

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 540243143 - 2⁶ = 540243079 is a prime.

It is a super-4 number, since 4×540243143⁴ (a number of 36 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540243173) 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, 335588 + ... + 337193.

It is an arithmetic number, because the mean of its divisors is an integer number (74678802).

Almost surely, 2^540243143 is an apocalyptic number.

540243143 is a deficient number, since it is larger than the sum of its proper divisors (57187273).

540243143 is a wasteful number, since it uses less digits than its factorization.

540243143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672865.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 540243143 is about 23243.1310928627. The cubic root of 540243143 is about 814.4474873137.

Adding to 540243143 its reverse (341342045), we get a palindrome (881585188).

The spelling of 540243143 in words is "five hundred forty million, two hundred forty-three thousand, one hundred forty-three".