120445305 has 16 divisors (see below), whose sum is σ = 193041600. Its totient is φ = 64127808.

The previous prime is 120445277. The next prime is 120445343. The reversal of 120445305 is 503544021.

It is not a de Polignac number, because 120445305 - 2¹⁰ = 120444281 is a prime.

It is an unprimeable number.

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, 2646 + ... + 15744.

It is an arithmetic number, because the mean of its divisors is an integer number (12065100).

Almost surely, 2^120445305 is an apocalyptic number.

120445305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120445305 is a deficient number, since it is larger than the sum of its proper divisors (72596295).

120445305 is a wasteful number, since it uses less digits than its factorization.

120445305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13720.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 120445305 is about 10974.7576283032. The cubic root of 120445305 is about 493.8517820401.

Adding to 120445305 its reverse (503544021), we get a palindrome (623989326).

The spelling of 120445305 in words is "one hundred twenty million, four hundred forty-five thousand, three hundred five".