540078539 has 60 divisors (see below), whose sum is σ = 750421512. Its totient is φ = 388468080.

The previous prime is 540078503. The next prime is 540078599. The reversal of 540078539 is 935870045.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a de Polignac number, because none of the positive numbers 2^k-540078539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 540078496 and 540078505.

It is not an unprimeable number, because it can be changed into a prime (540078599) 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 in 59 ways as a sum of consecutive naturals, for example, 41544497 + ... + 41544509.

Almost surely, 2^540078539 is an apocalyptic number.

540078539 is a deficient number, since it is larger than the sum of its proper divisors (210342973).

540078539 is an frugal number, since it uses more digits than its factorization.

540078539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 31 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 540078539 is about 23239.5899060203. The cubic root of 540078539 is about 814.3647622582.

The spelling of 540078539 in words is "five hundred forty million, seventy-eight thousand, five hundred thirty-nine".