120644773 has 2 divisors, whose sum is σ = 120644774. Its totient is φ = 120644772.

The previous prime is 120644731. The next prime is 120644779. The reversal of 120644773 is 377446021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120077764 + 567009 = 10958^2 + 753^2 .

It is a cyclic number.

It is not a de Polignac number, because 120644773 - 2⁹ = 120644261 is a prime.

It is a super-2 number, since 2×120644773² = 29110322504443058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120644779) 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, 60322386 + 60322387.

It is an arithmetic number, because the mean of its divisors is an integer number (60322387).

Almost surely, 2^120644773 is an apocalyptic number.

It is an amenable number.

120644773 is a deficient number, since it is larger than the sum of its proper divisors (1).

120644773 is an equidigital number, since it uses as much as digits as its factorization.

120644773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 120644773 is about 10983.8414500574. The cubic root of 120644773 is about 494.1242523207.

The spelling of 120644773 in words is "one hundred twenty million, six hundred forty-four thousand, seven hundred seventy-three".