540144243 has 12 divisors (see below), whose sum is σ = 780534040. Its totient is φ = 359945856.

The previous prime is 540144223. The next prime is 540144277. The reversal of 540144243 is 342441045.

It is a happy number.

It is not a de Polignac number, because 540144243 - 2⁵ = 540144211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540144223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12963 + ... + 35331.

Almost surely, 2^540144243 is an apocalyptic number.

540144243 is a deficient number, since it is larger than the sum of its proper divisors (240389797).

540144243 is a wasteful number, since it uses less digits than its factorization.

540144243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25058 (or 25055 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 540144243 is about 23241.0034852198. The cubic root of 540144243 is about 814.3977851421.

Adding to 540144243 its reverse (342441045), we get a palindrome (882585288).

The spelling of 540144243 in words is "five hundred forty million, one hundred forty-four thousand, two hundred forty-three".