540245065 has 4 divisors (see below), whose sum is σ = 648294084. Its totient is φ = 432196048.

The previous prime is 540245063. The next prime is 540245071. The reversal of 540245065 is 560542045.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 256928841 + 283316224 = 16029^2 + 16832^2 .

It is a cyclic number.

It is not a de Polignac number, because 540245065 - 2¹ = 540245063 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540245063) 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 3 ways as a sum of consecutive naturals, for example, 54024502 + ... + 54024511.

It is an arithmetic number, because the mean of its divisors is an integer number (162073521).

Almost surely, 2^540245065 is an apocalyptic number.

It is an amenable number.

540245065 is a deficient number, since it is larger than the sum of its proper divisors (108049019).

540245065 is a wasteful number, since it uses less digits than its factorization.

540245065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108049018.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 540245065 is about 23243.1724383742. The cubic root of 540245065 is about 814.4484531543.

The spelling of 540245065 in words is "five hundred forty million, two hundred forty-five thousand, sixty-five".