120512153 has 4 divisors (see below), whose sum is σ = 121178148. Its totient is φ = 119846160.

The previous prime is 120512137. The next prime is 120512173. The reversal of 120512153 is 351215021.

It is a happy number.

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 32752729 + 87759424 = 5723^2 + 9368^2 .

It is a cyclic number.

It is not a de Polignac number, because 120512153 - 2⁴ = 120512137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120512113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332726 + ... + 333087.

It is an arithmetic number, because the mean of its divisors is an integer number (30294537).

Almost surely, 2^120512153 is an apocalyptic number.

It is an amenable number.

120512153 is a deficient number, since it is larger than the sum of its proper divisors (665995).

120512153 is an equidigital number, since it uses as much as digits as its factorization.

120512153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665994.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 120512153 is about 10977.8027400751. The cubic root of 120512153 is about 493.9431288921.

Adding to 120512153 its reverse (351215021), we get a palindrome (471727174).

The spelling of 120512153 in words is "one hundred twenty million, five hundred twelve thousand, one hundred fifty-three".