120504505 has 12 divisors (see below), whose sum is σ = 158947236. Its totient is φ = 87639200.

The previous prime is 120504499. The next prime is 120504529. The reversal of 120504505 is 505405021.

It can be written as a sum of positive squares in 2 ways, for example, as 88661056 + 31843449 = 9416^2 + 5643^2 .

It is not a de Polignac number, because 120504505 - 2³ = 120504497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 98986 + ... + 100195.

It is an arithmetic number, because the mean of its divisors is an integer number (13245603).

Almost surely, 2^120504505 is an apocalyptic number.

It is an amenable number.

120504505 is a deficient number, since it is larger than the sum of its proper divisors (38442731).

120504505 is a wasteful number, since it uses less digits than its factorization.

120504505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199208 (or 199197 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 120504505 is about 10977.4543952594. The cubic root of 120504505 is about 493.9326797192.

Adding to 120504505 its reverse (505405021), we get a palindrome (625909526).

The spelling of 120504505 in words is "one hundred twenty million, five hundred four thousand, five hundred five".