540259943 has 2 divisors, whose sum is σ = 540259944. Its totient is φ = 540259942.

The previous prime is 540259939. The next prime is 540259957. The reversal of 540259943 is 349952045.

540259943 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540259943 - 2² = 540259939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 540259943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540259963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270129971 + 270129972.

It is an arithmetic number, because the mean of its divisors is an integer number (270129972).

Almost surely, 2^540259943 is an apocalyptic number.

540259943 is a deficient number, since it is larger than the sum of its proper divisors (1).

540259943 is an equidigital number, since it uses as much as digits as its factorization.

540259943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 540259943 is about 23243.4924871457. The cubic root of 540259943 is about 814.4559295470.

The spelling of 540259943 in words is "five hundred forty million, two hundred fifty-nine thousand, nine hundred forty-three".