540801863 has 4 divisors (see below), whose sum is σ = 618059280. Its totient is φ = 463544448.

The previous prime is 540801853. The next prime is 540801887. The reversal of 540801863 is 368108045.

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

It is a cyclic number.

It is not a de Polignac number, because 540801863 - 2¹⁰ = 540800839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540801853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38628698 + ... + 38628711.

It is an arithmetic number, because the mean of its divisors is an integer number (154514820).

Almost surely, 2^540801863 is an apocalyptic number.

540801863 is a deficient number, since it is larger than the sum of its proper divisors (77257417).

540801863 is an equidigital number, since it uses as much as digits as its factorization.

540801863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77257416.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 540801863 is about 23255.1470216810. The cubic root of 540801863 is about 814.7281580485.

The spelling of 540801863 in words is "five hundred forty million, eight hundred one thousand, eight hundred sixty-three".