120145015 has 4 divisors (see below), whose sum is σ = 144174024. Its totient is φ = 96116008.

The previous prime is 120144991. The next prime is 120145021. The reversal of 120145015 is 510541021.

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

It is a cyclic number.

It is not a de Polignac number, because 120145015 - 2⁷ = 120144887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120144983 and 120145001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12014497 + ... + 12014506.

It is an arithmetic number, because the mean of its divisors is an integer number (36043506).

Almost surely, 2^120145015 is an apocalyptic number.

120145015 is a deficient number, since it is larger than the sum of its proper divisors (24029009).

120145015 is an equidigital number, since it uses as much as digits as its factorization.

120145015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24029008.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 120145015 is about 10961.0681505043. The cubic root of 120145015 is about 493.4410225201.

Adding to 120145015 its reverse (510541021), we get a palindrome (630686036).

The spelling of 120145015 in words is "one hundred twenty million, one hundred forty-five thousand, fifteen".