540243079 has 2 divisors, whose sum is σ = 540243080. Its totient is φ = 540243078.

The previous prime is 540243073. The next prime is 540243161. The reversal of 540243079 is 970342045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540243079 - 2³ = 540243071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540243071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270121539 + 270121540.

It is an arithmetic number, because the mean of its divisors is an integer number (270121540).

Almost surely, 2^540243079 is an apocalyptic number.

540243079 is a deficient number, since it is larger than the sum of its proper divisors (1).

540243079 is an equidigital number, since it uses as much as digits as its factorization.

540243079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 540243079 is about 23243.1297161118. The cubic root of 540243079 is about 814.4474551525.

The spelling of 540243079 in words is "five hundred forty million, two hundred forty-three thousand, seventy-nine".