159375 has 24 divisors (see below), whose sum is σ = 281232. Its totient is φ = 80000.

The previous prime is 159361. The next prime is 159389. The reversal of 159375 is 573951.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (159361) and next prime (159389).

It is not a de Polignac number, because 159375 - 2⁶ = 159311 is a prime.

It is an Ulam number.

Its product of digits (4725) is a multiple of the sum of its prime divisors (25).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 159375.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9367 + ... + 9383.

It is an arithmetic number, because the mean of its divisors is an integer number (11718).

159375 is a Friedman number, since it can be written as 51*(9-7+3)^5, using all its digits and the basic arithmetic operations.

2¹⁵⁹³⁷⁵ is an apocalyptic number.

159375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

159375 is a deficient number, since it is larger than the sum of its proper divisors (121857).

159375 is an frugal number, since it uses more digits than its factorization.

159375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45 (or 25 counting only the distinct ones).

The product of its digits is 4725, while the sum is 30.

The square root of 159375 is about 399.2179855668. The cubic root of 159375 is about 54.2175721313.

It can be divided in two parts, 15 and 9375, that multiplied together give a square (140625 = 375²).

The spelling of 159375 in words is "one hundred fifty-nine thousand, three hundred seventy-five".