540887513 has 2 divisors, whose sum is σ = 540887514. Its totient is φ = 540887512.

The previous prime is 540887509. The next prime is 540887533. The reversal of 540887513 is 315788045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 494484169 + 46403344 = 22237^2 + 6812^2 .

It is a cyclic number.

It is not a de Polignac number, because 540887513 - 2² = 540887509 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (540887533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270443756 + 270443757.

It is an arithmetic number, because the mean of its divisors is an integer number (270443757).

Almost surely, 2^540887513 is an apocalyptic number.

It is an amenable number.

540887513 is a deficient number, since it is larger than the sum of its proper divisors (1).

540887513 is an equidigital number, since it uses as much as digits as its factorization.

540887513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 540887513 is about 23256.9884765848. The cubic root of 540887513 is about 814.7711668890.

The spelling of 540887513 in words is "five hundred forty million, eight hundred eighty-seven thousand, five hundred thirteen".