540788861 has 2 divisors, whose sum is σ = 540788862. Its totient is φ = 540788860.

The previous prime is 540788827. The next prime is 540788869. The reversal of 540788861 is 168887045.

It is a happy number.

540788861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 282576100 + 258212761 = 16810^2 + 16069^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540788861 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540788869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270394430 + 270394431.

It is an arithmetic number, because the mean of its divisors is an integer number (270394431).

Almost surely, 2^540788861 is an apocalyptic number.

It is an amenable number.

540788861 is a deficient number, since it is larger than the sum of its proper divisors (1).

540788861 is an equidigital number, since it uses as much as digits as its factorization.

540788861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 430080, while the sum is 47.

The square root of 540788861 is about 23254.8674689838. The cubic root of 540788861 is about 814.7216287439.

The spelling of 540788861 in words is "five hundred forty million, seven hundred eighty-eight thousand, eight hundred sixty-one".