133804 has 12 divisors (see below), whose sum is σ = 255528. Its totient is φ = 60800.

The previous prime is 133801. The next prime is 133811. The reversal of 133804 is 408331.

It is not an unprimeable number, because it can be changed into a prime (133801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1477 + ... + 1564.

It is an arithmetic number, because the mean of its divisors is an integer number (21294).

2¹³³⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

133804 is a deficient number, since it is larger than the sum of its proper divisors (121724).

133804 is a wasteful number, since it uses less digits than its factorization.

133804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056 (or 3054 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 133804 is about 365.7922907881. The cubic root of 133804 is about 51.1473376164.

The spelling of 133804 in words is "one hundred thirty-three thousand, eight hundred four".