120705009 has 16 divisors (see below), whose sum is σ = 164571264. Its totient is φ = 78665600.

The previous prime is 120704971. The next prime is 120705019. The reversal of 120705009 is 900507021.

It is a cyclic number.

It is not a de Polignac number, because 120705009 - 2⁹ = 120704497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120705009.

It is not an unprimeable number, because it can be changed into a prime (120705019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48229 + ... + 50669.

It is an arithmetic number, because the mean of its divisors is an integer number (10285704).

Almost surely, 2^120705009 is an apocalyptic number.

It is an amenable number.

120705009 is a deficient number, since it is larger than the sum of its proper divisors (43866255).

120705009 is a wasteful number, since it uses less digits than its factorization.

120705009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 120705009 is about 10986.5831358071. The cubic root of 120705009 is about 494.2064747426.

The spelling of 120705009 in words is "one hundred twenty million, seven hundred five thousand, nine".