120307145 has 32 divisors (see below), whose sum is σ = 175322880. Its totient is φ = 77414400.

The previous prime is 120307133. The next prime is 120307177. The reversal of 120307145 is 541703021.

It is not a de Polignac number, because 120307145 - 2⁶ = 120307081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120307145.

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 31 ways as a sum of consecutive naturals, for example, 74345 + ... + 75945.

It is an arithmetic number, because the mean of its divisors is an integer number (5478840).

Almost surely, 2^120307145 is an apocalyptic number.

It is an amenable number.

120307145 is a deficient number, since it is larger than the sum of its proper divisors (55015735).

120307145 is a wasteful number, since it uses less digits than its factorization.

120307145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 120307145 is about 10968.4613779691. The cubic root of 120307145 is about 493.6628811737.

The spelling of 120307145 in words is "one hundred twenty million, three hundred seven thousand, one hundred forty-five".