133326 has 20 divisors (see below), whose sum is σ = 299112. Its totient is φ = 44388.

The previous prime is 133321. The next prime is 133327. The reversal of 133326 is 623331.

It is a happy number.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 1 + 3 + 3³ + 3⁷ + 2¹⁷ + 6² .

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 133299 and 133308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133321) by changing a digit.

133326 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 9 ways as a sum of consecutive naturals, for example, 250 + ... + 573.

2¹³³³²⁶ is an apocalyptic number.

133326 is an abundant number, since it is smaller than the sum of its proper divisors (165786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133326 is an equidigital number, since it uses as much as digits as its factorization.

133326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 828 counting only the distinct ones).

The product of its digits is 324, while the sum is 18.

The square root of 133326 is about 365.1383299518. The cubic root of 133326 is about 51.0863588753.

Adding to 133326 its reverse (623331), we get a palindrome (756657).

The spelling of 133326 in words is "one hundred thirty-three thousand, three hundred twenty-six".