540636265 has 16 divisors (see below), whose sum is σ = 699159888. Its totient is φ = 398958336.

The previous prime is 540636259. The next prime is 540636269. The reversal of 540636265 is 562636045.

It can be written as a sum of positive squares in 8 ways, for example, as 40487769 + 500148496 = 6363^2 + 22364^2 .

It is a cyclic number.

It is not a de Polignac number, because 540636265 - 2¹⁷ = 540505193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540636269) 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 15 ways as a sum of consecutive naturals, for example, 156699 + ... + 160111.

It is an arithmetic number, because the mean of its divisors is an integer number (43697493).

Almost surely, 2^540636265 is an apocalyptic number.

It is an amenable number.

540636265 is a deficient number, since it is larger than the sum of its proper divisors (158523623).

540636265 is a wasteful number, since it uses less digits than its factorization.

540636265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5868.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 540636265 is about 23251.5862899717. The cubic root of 540636265 is about 814.6449907273.

The spelling of 540636265 in words is "five hundred forty million, six hundred thirty-six thousand, two hundred sixty-five".