120144225 has 24 divisors (see below), whose sum is σ = 199049760. Its totient is φ = 63944320.

The previous prime is 120144221. The next prime is 120144257. The reversal of 120144225 is 522441021.

It is not a de Polignac number, because 120144225 - 2² = 120144221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120144221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42661 + ... + 45389.

It is an arithmetic number, because the mean of its divisors is an integer number (8293740).

Almost surely, 2^120144225 is an apocalyptic number.

120144225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120144225 is a deficient number, since it is larger than the sum of its proper divisors (78905535).

120144225 is a wasteful number, since it uses less digits than its factorization.

120144225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3329 (or 3324 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 120144225 is about 10961.0321138112. The cubic root of 120144225 is about 493.4399409958.

Adding to 120144225 its reverse (522441021), we get a palindrome (642585246).

The spelling of 120144225 in words is "one hundred twenty million, one hundred forty-four thousand, two hundred twenty-five".