540564289 has 4 divisors (see below), whose sum is σ = 541990960. Its totient is φ = 539137620.

The previous prime is 540564287. The next prime is 540564301. The reversal of 540564289 is 982465045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 540564289 - 2¹ = 540564287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540564287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712767 + ... + 713524.

It is an arithmetic number, because the mean of its divisors is an integer number (135497740).

Almost surely, 2^540564289 is an apocalyptic number.

It is an amenable number.

540564289 is a deficient number, since it is larger than the sum of its proper divisors (1426671).

540564289 is a wasteful number, since it uses less digits than its factorization.

540564289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426670.

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 540564289 is about 23250.0384730864. The cubic root of 540564289 is about 814.6088373441.

The spelling of 540564289 in words is "five hundred forty million, five hundred sixty-four thousand, two hundred eighty-nine".