540743 has 4 divisors (see below), whose sum is σ = 618000. Its totient is φ = 463488.

The previous prime is 540713. The next prime is 540751. The reversal of 540743 is 347045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 540743 - 2⁶ = 540679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 540743.

It is not an unprimeable number, because it can be changed into a prime (540703) 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, 38618 + ... + 38631.

It is an arithmetic number, because the mean of its divisors is an integer number (154500).

2⁵⁴⁰⁷⁴³ is an apocalyptic number.

540743 is a deficient number, since it is larger than the sum of its proper divisors (77257).

540743 is an equidigital number, since it uses as much as digits as its factorization.

540743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77256.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 540743 is about 735.3522965219. The cubic root of 540743 is about 81.4698597571.

Adding to 540743 its reverse (347045), we get a palindrome (887788).

The spelling of 540743 in words is "five hundred forty thousand, seven hundred forty-three".