159659 has 8 divisors (see below), whose sum is σ = 168960. Its totient is φ = 150696.

The previous prime is 159631. The next prime is 159667. The reversal of 159659 is 956951.

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 159659 - 2⁸ = 159403 is a prime.

It is a Duffinian 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, 1982 + ... + 2060.

It is an arithmetic number, because the mean of its divisors is an integer number (21120).

2¹⁵⁹⁶⁵⁹ is an apocalyptic number.

159659 is a deficient number, since it is larger than the sum of its proper divisors (9301).

159659 is an equidigital number, since it uses as much as digits as its factorization.

159659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169.

The product of its digits is 12150, while the sum is 35.

The square root of 159659 is about 399.5735226463. The cubic root of 159659 is about 54.2497575502.

It can be divided in two parts, 159 and 659, that added together give a palindrome (818).

The spelling of 159659 in words is "one hundred fifty-nine thousand, six hundred fifty-nine".