120845445 has 16 divisors (see below), whose sum is σ = 220974720. Its totient is φ = 55243584.

The previous prime is 120845423. The next prime is 120845449. The reversal of 120845445 is 544548021.

It is a happy number.

It is not a de Polignac number, because 120845445 - 2⁷ = 120845317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120845449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575350 + ... + 575559.

It is an arithmetic number, because the mean of its divisors is an integer number (13810920).

Almost surely, 2^120845445 is an apocalyptic number.

120845445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120845445 is a deficient number, since it is larger than the sum of its proper divisors (100129275).

120845445 is a wasteful number, since it uses less digits than its factorization.

120845445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150924.

The product of its (nonzero) digits is 25600, while the sum is 33.

The square root of 120845445 is about 10992.9725279380. The cubic root of 120845445 is about 494.3980643652.

The spelling of 120845445 in words is "one hundred twenty million, eight hundred forty-five thousand, four hundred forty-five".