540507637 has 2 divisors, whose sum is σ = 540507638. Its totient is φ = 540507636.

The previous prime is 540507563. The next prime is 540507677. The reversal of 540507637 is 736705045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 521619921 + 18887716 = 22839^2 + 4346^2 .

It is a cyclic number.

It is not a de Polignac number, because 540507637 - 2⁷ = 540507509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 540507596 and 540507605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540507677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270253818 + 270253819.

It is an arithmetic number, because the mean of its divisors is an integer number (270253819).

Almost surely, 2^540507637 is an apocalyptic number.

It is an amenable number.

540507637 is a deficient number, since it is larger than the sum of its proper divisors (1).

540507637 is an equidigital number, since it uses as much as digits as its factorization.

540507637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 540507637 is about 23248.8201205997. The cubic root of 540507637 is about 814.5803789147.

The spelling of 540507637 in words is "five hundred forty million, five hundred seven thousand, six hundred thirty-seven".