159636 has 24 divisors (see below), whose sum is σ = 381024. Its totient is φ = 52000.

The previous prime is 159631. The next prime is 159667. The reversal of 159636 is 636951.

It is a happy 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 159636.

It is not an unprimeable number, because it can be changed into a prime (159631) by changing a digit.

159636 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511 + ... + 761.

It is an arithmetic number, because the mean of its divisors is an integer number (15876).

2¹⁵⁹⁶³⁶ is an apocalyptic number.

It is an amenable number.

159636 is an abundant number, since it is smaller than the sum of its proper divisors (221388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159636 is a wasteful number, since it uses less digits than its factorization.

159636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 309 counting only the distinct ones).

The product of its digits is 4860, while the sum is 30.

The square root of 159636 is about 399.5447409240. The cubic root of 159636 is about 54.2471524056.

It can be divided in two parts, 159 and 636, that multiplied together give a square (101124 = 318²).

The spelling of 159636 in words is "one hundred fifty-nine thousand, six hundred thirty-six".