120524545 has 4 divisors (see below), whose sum is σ = 144629460. Its totient is φ = 96419632.

The previous prime is 120524539. The next prime is 120524567. The reversal of 120524545 is 545425021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30824704 + 89699841 = 5552^2 + 9471^2 .

It is a cyclic number.

It is not a de Polignac number, because 120524545 - 2⁵ = 120524513 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12052450 + ... + 12052459.

It is an arithmetic number, because the mean of its divisors is an integer number (36157365).

Almost surely, 2^120524545 is an apocalyptic number.

It is an amenable number.

120524545 is a deficient number, since it is larger than the sum of its proper divisors (24104915).

120524545 is an equidigital number, since it uses as much as digits as its factorization.

120524545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24104914.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 120524545 is about 10978.3671372386. The cubic root of 120524545 is about 493.9600586742.

Adding to 120524545 its reverse (545425021), we get a palindrome (665949566).

The spelling of 120524545 in words is "one hundred twenty million, five hundred twenty-four thousand, five hundred forty-five".