120030145 has 8 divisors (see below), whose sum is σ = 144097704. Its totient is φ = 95983104.

The previous prime is 120030137. The next prime is 120030161. The reversal of 120030145 is 541030021.

It can be written as a sum of positive squares in 4 ways, for example, as 15499969 + 104530176 = 3937^2 + 10224^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120030145 - 2³ = 120030137 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 14767 + ... + 21403.

It is an arithmetic number, because the mean of its divisors is an integer number (18012213).

Almost surely, 2^120030145 is an apocalyptic number.

It is an amenable number.

120030145 is a deficient number, since it is larger than the sum of its proper divisors (24067559).

120030145 is an equidigital number, since it uses as much as digits as its factorization.

120030145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10259.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 120030145 is about 10955.8269884112. The cubic root of 120030145 is about 493.2837136097.

Adding to 120030145 its reverse (541030021), we get a palindrome (661060166).

The spelling of 120030145 in words is "one hundred twenty million, thirty thousand, one hundred forty-five".