540503143 has 4 divisors (see below), whose sum is σ = 541424520. Its totient is φ = 539581768.

The previous prime is 540503113. The next prime is 540503213. The reversal of 540503143 is 341305045.

540503143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341305045 = 5 ⋅68261009.

It is a cyclic number.

It is not a de Polignac number, because 540503143 - 2¹⁷ = 540372071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540503113) 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, 459808 + ... + 460981.

It is an arithmetic number, because the mean of its divisors is an integer number (135356130).

Almost surely, 2^540503143 is an apocalyptic number.

540503143 is a deficient number, since it is larger than the sum of its proper divisors (921377).

540503143 is an equidigital number, since it uses as much as digits as its factorization.

540503143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921376.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 540503143 is about 23248.7234703327. The cubic root of 540503143 is about 814.5781213244.

Adding to 540503143 its reverse (341305045), we get a palindrome (881808188).

The spelling of 540503143 in words is "five hundred forty million, five hundred three thousand, one hundred forty-three".