120664717 has 2 divisors, whose sum is σ = 120664718. Its totient is φ = 120664716.

The previous prime is 120664711. The next prime is 120664721. The reversal of 120664717 is 717466021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89984196 + 30680521 = 9486^2 + 5539^2 .

It is an emirp because it is prime and its reverse (717466021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120664717 - 2¹⁹ = 120140429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120664711) 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, 60332358 + 60332359.

It is an arithmetic number, because the mean of its divisors is an integer number (60332359).

Almost surely, 2^120664717 is an apocalyptic number.

It is an amenable number.

120664717 is a deficient number, since it is larger than the sum of its proper divisors (1).

120664717 is an equidigital number, since it uses as much as digits as its factorization.

120664717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 120664717 is about 10984.7492916316. The cubic root of 120664717 is about 494.1514790041.

The spelling of 120664717 in words is "one hundred twenty million, six hundred sixty-four thousand, seven hundred seventeen".