159609 has 8 divisors (see below), whose sum is σ = 215712. Its totient is φ = 104960.

The previous prime is 159589. The next prime is 159617. The reversal of 159609 is 906951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 159609 - 2⁹ = 159097 is a prime.

159609 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (159629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72 + ... + 569.

It is an arithmetic number, because the mean of its divisors is an integer number (26964).

2¹⁵⁹⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

159609 is a deficient number, since it is larger than the sum of its proper divisors (56103).

159609 is an equidigital number, since it uses as much as digits as its factorization.

159609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 159609 is about 399.5109510389. The cubic root of 159609 is about 54.2440938731.

The spelling of 159609 in words is "one hundred fifty-nine thousand, six hundred nine".