120852815 has 4 divisors (see below), whose sum is σ = 145023384. Its totient is φ = 96682248.

The previous prime is 120852811. The next prime is 120852821. The reversal of 120852815 is 518258021.

It is a happy number.

120852815 is nontrivially palindromic in base 8.

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 120852815 - 2² = 120852811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120852811) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12085277 + ... + 12085286.

It is an arithmetic number, because the mean of its divisors is an integer number (36255846).

Almost surely, 2^120852815 is an apocalyptic number.

120852815 is a deficient number, since it is larger than the sum of its proper divisors (24170569).

120852815 is an equidigital number, since it uses as much as digits as its factorization.

120852815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24170568.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 120852815 is about 10993.3077369825. The cubic root of 120852815 is about 494.4081147775.

The spelling of 120852815 in words is "one hundred twenty million, eight hundred fifty-two thousand, eight hundred fifteen".