540065065 has 4 divisors (see below), whose sum is σ = 648078084. Its totient is φ = 432052048.

The previous prime is 540065051. The next prime is 540065077. The reversal of 540065065 is 560560045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 560560045 = 5 ⋅112112009.

It can be written as a sum of positive squares in 2 ways, for example, as 211440681 + 328624384 = 14541^2 + 18128^2 .

It is a cyclic number.

It is not a de Polignac number, because 540065065 - 2¹³ = 540056873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54006502 + ... + 54006511.

It is an arithmetic number, because the mean of its divisors is an integer number (162019521).

Almost surely, 2^540065065 is an apocalyptic number.

It is an amenable number.

540065065 is a deficient number, since it is larger than the sum of its proper divisors (108013019).

540065065 is a wasteful number, since it uses less digits than its factorization.

540065065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108013018.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 540065065 is about 23239.3000109728. The cubic root of 540065065 is about 814.3579898839.

The spelling of 540065065 in words is "five hundred forty million, sixty-five thousand, sixty-five".