540517 has 2 divisors, whose sum is σ = 540518. Its totient is φ = 540516.

The previous prime is 540511. The next prime is 540539. The reversal of 540517 is 715045.

It is an a-pointer prime, because the next prime (540539) can be obtained adding 540517 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 417316 + 123201 = 646^2 + 351^2 .

It is a cyclic number.

It is not a de Polignac number, because 540517 - 2³ = 540509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270258 + 270259.

It is an arithmetic number, because the mean of its divisors is an integer number (270259).

2⁵⁴⁰⁵¹⁷ is an apocalyptic number.

It is an amenable number.

540517 is a deficient number, since it is larger than the sum of its proper divisors (1).

540517 is an equidigital number, since it uses as much as digits as its factorization.

540517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 540517 is about 735.1986126211. The cubic root of 540517 is about 81.4585082439.

The spelling of 540517 in words is "five hundred forty thousand, five hundred seventeen".