159775120 has 20 divisors (see below), whose sum is σ = 371477340. Its totient is φ = 63910016.

The previous prime is 159775117. The next prime is 159775141. The reversal of 159775120 is 21577951.

It can be written as a sum of positive squares in 2 ways, for example, as 32626944 + 127148176 = 5712^2 + 11276^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 159775120.

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 3 ways as a sum of consecutive naturals, for example, 998515 + ... + 998674.

It is an arithmetic number, because the mean of its divisors is an integer number (18573867).

Almost surely, 2^159775120 is an apocalyptic number.

159775120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159775120 is an abundant number, since it is smaller than the sum of its proper divisors (211702220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159775120 is a wasteful number, since it uses less digits than its factorization.

159775120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997202 (or 1997196 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 37.

The square root of 159775120 is about 12640.2183525444. The cubic root of 159775120 is about 542.6290631364.

It can be divided in two parts, 159775 and 120, that added together give a triangular number (159895 = T₅₆₅).

The spelling of 159775120 in words is "one hundred fifty-nine million, seven hundred seventy-five thousand, one hundred twenty".