133204 has 6 divisors (see below), whose sum is σ = 233114. Its totient is φ = 66600.

The previous prime is 133201. The next prime is 133213. The reversal of 133204 is 402331.

It can be written as a sum of positive squares in only one way, i.e., 121104 + 12100 = 348^2 + 110^2 .

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16647 + ... + 16654.

2¹³³²⁰⁴ is an apocalyptic number.

It is an amenable number.

133204 is a deficient number, since it is larger than the sum of its proper divisors (99910).

133204 is a wasteful number, since it uses less digits than its factorization.

133204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33305 (or 33303 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 133204 is about 364.9712317430. The cubic root of 133204 is about 51.0707719236.

Adding to 133204 its reverse (402331), we get a palindrome (535535).

The spelling of 133204 in words is "one hundred thirty-three thousand, two hundred four".