540523591 has 2 divisors, whose sum is σ = 540523592. Its totient is φ = 540523590.

The previous prime is 540523583. The next prime is 540523681. The reversal of 540523591 is 195325045.

540523591 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 540523591 - 2³ = 540523583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540523561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270261795 + 270261796.

It is an arithmetic number, because the mean of its divisors is an integer number (270261796).

Almost surely, 2^540523591 is an apocalyptic number.

540523591 is a deficient number, since it is larger than the sum of its proper divisors (1).

540523591 is an equidigital number, since it uses as much as digits as its factorization.

540523591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 540523591 is about 23249.1632322542. The cubic root of 540523591 is about 814.5883934098.

The spelling of 540523591 in words is "five hundred forty million, five hundred twenty-three thousand, five hundred ninety-one".