120851173 has 4 divisors (see below), whose sum is σ = 121047660. Its totient is φ = 120654688.

The previous prime is 120851123. The next prime is 120851197. The reversal of 120851173 is 371158021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 371158021 = 13 ⋅28550617.

It can be written as a sum of positive squares in 2 ways, for example, as 51595489 + 69255684 = 7183^2 + 8322^2 .

It is a cyclic number.

It is not a de Polignac number, because 120851173 - 2⁹ = 120850661 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 (120851123) 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, 97318 + ... + 98551.

It is an arithmetic number, because the mean of its divisors is an integer number (30261915).

Almost surely, 2^120851173 is an apocalyptic number.

It is an amenable number.

120851173 is a deficient number, since it is larger than the sum of its proper divisors (196487).

120851173 is an equidigital number, since it uses as much as digits as its factorization.

120851173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196486.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 120851173 is about 10993.2330549297. The cubic root of 120851173 is about 494.4058756301.

The spelling of 120851173 in words is "one hundred twenty million, eight hundred fifty-one thousand, one hundred seventy-three".