120444209 has 2 divisors, whose sum is σ = 120444210. Its totient is φ = 120444208.

The previous prime is 120444199. The next prime is 120444227. The reversal of 120444209 is 902444021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89397025 + 31047184 = 9455^2 + 5572^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120444209 is a prime.

It is not a weakly prime, because it can be changed into another prime (120444239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60222104 + 60222105.

It is an arithmetic number, because the mean of its divisors is an integer number (60222105).

Almost surely, 2^120444209 is an apocalyptic number.

It is an amenable number.

120444209 is a deficient number, since it is larger than the sum of its proper divisors (1).

120444209 is an equidigital number, since it uses as much as digits as its factorization.

120444209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 120444209 is about 10974.7076954241. The cubic root of 120444209 is about 493.8502840900.

The spelling of 120444209 in words is "one hundred twenty million, four hundred forty-four thousand, two hundred nine".