133606 has 8 divisors (see below), whose sum is σ = 218664. Its totient is φ = 60720.

The previous prime is 133597. The next prime is 133631. The reversal of 133606 is 606331.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3015 + ... + 3058.

It is an arithmetic number, because the mean of its divisors is an integer number (27333).

2¹³³⁶⁰⁶ is an apocalyptic number.

133606 is a deficient number, since it is larger than the sum of its proper divisors (85058).

133606 is a wasteful number, since it uses less digits than its factorization.

133606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6086.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 133606 is about 365.5215451926. The cubic root of 133606 is about 51.1220962876.

Adding to 133606 its reverse (606331), we get a palindrome (739937).

It can be divided in two parts, 13360 and 6, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 133606 in words is "one hundred thirty-three thousand, six hundred six".