540352243 has 4 divisors (see below), whose sum is σ = 553531608. Its totient is φ = 527172880.

The previous prime is 540352231. The next prime is 540352261. The reversal of 540352243 is 342253045.

540352243 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: 342253045 = 5 ⋅68450609.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540352243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540352223) 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, 6589621 + ... + 6589702.

It is an arithmetic number, because the mean of its divisors is an integer number (138382902).

Almost surely, 2^540352243 is an apocalyptic number.

540352243 is a deficient number, since it is larger than the sum of its proper divisors (13179365).

540352243 is a wasteful number, since it uses less digits than its factorization.

540352243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13179364.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 540352243 is about 23245.4779043151. The cubic root of 540352243 is about 814.5023084569.

The spelling of 540352243 in words is "five hundred forty million, three hundred fifty-two thousand, two hundred forty-three".