545964217 has 2 divisors, whose sum is σ = 545964218. Its totient is φ = 545964216.

The previous prime is 545964151. The next prime is 545964239. The reversal of 545964217 is 712469545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 539354176 + 6610041 = 23224^2 + 2571^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545964217 is a prime.

It is not a weakly prime, because it can be changed into another prime (545964257) 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, 272982108 + 272982109.

It is an arithmetic number, because the mean of its divisors is an integer number (272982109).

Almost surely, 2^545964217 is an apocalyptic number.

It is an amenable number.

545964217 is a deficient number, since it is larger than the sum of its proper divisors (1).

545964217 is an equidigital number, since it uses as much as digits as its factorization.

545964217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 43.

The square root of 545964217 is about 23365.8771930351. The cubic root of 545964217 is about 817.3123471439.

The spelling of 545964217 in words is "five hundred forty-five million, nine hundred sixty-four thousand, two hundred seventeen".