540264217 has 2 divisors, whose sum is σ = 540264218. Its totient is φ = 540264216.

The previous prime is 540264211. The next prime is 540264253. The reversal of 540264217 is 712462045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 518882841 + 21381376 = 22779^2 + 4624^2 .

It is a cyclic number.

It is not a de Polignac number, because 540264217 - 2³ = 540264209 is a prime.

It is not a weakly prime, because it can be changed into another prime (540264211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270132108 + 270132109.

It is an arithmetic number, because the mean of its divisors is an integer number (270132109).

Almost surely, 2^540264217 is an apocalyptic number.

It is an amenable number.

540264217 is a deficient number, since it is larger than the sum of its proper divisors (1).

540264217 is an equidigital number, since it uses as much as digits as its factorization.

540264217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 540264217 is about 23243.5844266757. The cubic root of 540264217 is about 814.4580772634.

The spelling of 540264217 in words is "five hundred forty million, two hundred sixty-four thousand, two hundred seventeen".