120500305 has 16 divisors (see below), whose sum is σ = 149054544. Its totient is φ = 93450240.

The previous prime is 120500293. The next prime is 120500309. The reversal of 120500305 is 503005021.

It can be written as a sum of positive squares in 8 ways, for example, as 7800849 + 112699456 = 2793^2 + 10616^2 .

It is a de Polignac number, because none of the positive numbers 2^k-120500305 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120500309) 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 in 15 ways as a sum of consecutive naturals, for example, 56865 + ... + 58945.

It is an arithmetic number, because the mean of its divisors is an integer number (9315909).

Almost surely, 2^120500305 is an apocalyptic number.

It is an amenable number.

120500305 is a deficient number, since it is larger than the sum of its proper divisors (28554239).

120500305 is a wasteful number, since it uses less digits than its factorization.

120500305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 120500305 is about 10977.2630924106. The cubic root of 120500305 is about 493.9269412301.

Adding to 120500305 its reverse (503005021), we get a palindrome (623505326).

The spelling of 120500305 in words is "one hundred twenty million, five hundred thousand, three hundred five".