133255 has 8 divisors (see below), whose sum is σ = 165600. Its totient is φ = 102816.

The previous prime is 133253. The next prime is 133261. The reversal of 133255 is 552331.

133255 = T₈₁ + T₈₂ + ... + T₁₀₉.

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

It is a cyclic number.

It is not a de Polignac number, because 133255 - 2¹ = 133253 is a prime.

133255 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315 + ... + 604.

It is an arithmetic number, because the mean of its divisors is an integer number (20700).

2¹³³²⁵⁵ is an apocalyptic number.

133255 is a deficient number, since it is larger than the sum of its proper divisors (32345).

133255 is an equidigital number, since it uses as much as digits as its factorization.

133255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953.

The product of its digits is 450, while the sum is 19.

The square root of 133255 is about 365.0410935771. The cubic root of 133255 is about 51.0772889377.

Adding to 133255 its reverse (552331), we get a palindrome (685586).

The spelling of 133255 in words is "one hundred thirty-three thousand, two hundred fifty-five".