540504901 has 2 divisors, whose sum is σ = 540504902. Its totient is φ = 540504900.

The previous prime is 540504827. The next prime is 540504907. The reversal of 540504901 is 109405045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 511935876 + 28569025 = 22626^2 + 5345^2 .

It is a cyclic number.

It is not a de Polignac number, because 540504901 - 2⁹ = 540504389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 540504901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540504907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270252450 + 270252451.

It is an arithmetic number, because the mean of its divisors is an integer number (270252451).

Almost surely, 2^540504901 is an apocalyptic number.

It is an amenable number.

540504901 is a deficient number, since it is larger than the sum of its proper divisors (1).

540504901 is an equidigital number, since it uses as much as digits as its factorization.

540504901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 540504901 is about 23248.7612788295. The cubic root of 540504901 is about 814.5790044687.

Adding to 540504901 its reverse (109405045), we get a palindrome (649909946).

The spelling of 540504901 in words is "five hundred forty million, five hundred four thousand, nine hundred one".