159533 has 4 divisors (see below), whose sum is σ = 174048. Its totient is φ = 145020.

The previous prime is 159521. The next prime is 159539. The reversal of 159533 is 335951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 159533 - 2⁶ = 159469 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7241 + ... + 7262.

It is an arithmetic number, because the mean of its divisors is an integer number (43512).

2¹⁵⁹⁵³³ is an apocalyptic number.

It is an amenable number.

159533 is a deficient number, since it is larger than the sum of its proper divisors (14515).

159533 is a wasteful number, since it uses less digits than its factorization.

159533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14514.

The product of its digits is 2025, while the sum is 26.

The square root of 159533 is about 399.4158234222. The cubic root of 159533 is about 54.2354828181.

The spelling of 159533 in words is "one hundred fifty-nine thousand, five hundred thirty-three".