159365 has 4 divisors (see below), whose sum is σ = 191244. Its totient is φ = 127488.

The previous prime is 159361. The next prime is 159389. The reversal of 159365 is 563951.

159365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

159365 is an esthetic number in base 15, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 563951 = 271 ⋅2081.

It can be written as a sum of positive squares in 2 ways, for example, as 45796 + 113569 = 214^2 + 337^2 .

It is a cyclic number.

It is not a de Polignac number, because 159365 - 2² = 159361 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 (159361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15932 + ... + 15941.

It is an arithmetic number, because the mean of its divisors is an integer number (47811).

2¹⁵⁹³⁶⁵ is an apocalyptic number.

It is an amenable number.

159365 is a deficient number, since it is larger than the sum of its proper divisors (31879).

159365 is an equidigital number, since it uses as much as digits as its factorization.

159365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31878.

The product of its digits is 4050, while the sum is 29.

The square root of 159365 is about 399.2054608845. The cubic root of 159365 is about 54.2164381452.

The spelling of 159365 in words is "one hundred fifty-nine thousand, three hundred sixty-five".