133159 has 4 divisors (see below), whose sum is σ = 143416. Its totient is φ = 122904.

The previous prime is 133157. The next prime is 133169. The reversal of 133159 is 951331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133159 - 2¹ = 133157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5109 + ... + 5134.

It is an arithmetic number, because the mean of its divisors is an integer number (35854).

2¹³³¹⁵⁹ is an apocalyptic number.

133159 is a deficient number, since it is larger than the sum of its proper divisors (10257).

133159 is a wasteful number, since it uses less digits than its factorization.

133159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10256.

The product of its digits is 405, while the sum is 22.

The square root of 133159 is about 364.9095778409. The cubic root of 133159 is about 51.0650202355.

It can be divided in two parts, 133 and 159, that added together give a palindrome (292).

The spelling of 133159 in words is "one hundred thirty-three thousand, one hundred fifty-nine".