540513637 has 2 divisors, whose sum is σ = 540513638. Its totient is φ = 540513636.

The previous prime is 540513607. The next prime is 540513647. The reversal of 540513637 is 736315045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 372914721 + 167598916 = 19311^2 + 12946^2 .

It is a cyclic number.

It is not a de Polignac number, because 540513637 - 2¹¹ = 540511589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540513607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270256818 + 270256819.

It is an arithmetic number, because the mean of its divisors is an integer number (270256819).

Almost surely, 2^540513637 is an apocalyptic number.

It is an amenable number.

540513637 is a deficient number, since it is larger than the sum of its proper divisors (1).

540513637 is an equidigital number, since it uses as much as digits as its factorization.

540513637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 540513637 is about 23248.9491590480. The cubic root of 540513637 is about 814.5833930344.

The spelling of 540513637 in words is "five hundred forty million, five hundred thirteen thousand, six hundred thirty-seven".