159309 has 12 divisors (see below), whose sum is σ = 237952. Its totient is φ = 102600.

The previous prime is 159293. The next prime is 159311. The reversal of 159309 is 903951.

It is not a de Polignac number, because 159309 - 2⁴ = 159293 is a prime.

It is a Duffinian number.

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 159309.

It is not an unprimeable number, because it can be changed into a prime (159319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7 + ... + 564.

2¹⁵⁹³⁰⁹ is an apocalyptic number.

It is an amenable number.

159309 is a deficient number, since it is larger than the sum of its proper divisors (78643).

159309 is a wasteful number, since it uses less digits than its factorization.

159309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 605 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 159309 is about 399.1353154007. The cubic root of 159309 is about 54.2100869468.

The spelling of 159309 in words is "one hundred fifty-nine thousand, three hundred nine".