133325 has 6 divisors (see below), whose sum is σ = 165354. Its totient is φ = 106640.

The previous prime is 133321. The next prime is 133327. The reversal of 133325 is 523331.

It can be written as a sum of positive squares in 3 ways, for example, as 44521 + 88804 = 211^2 + 298^2 .

It is not a de Polignac number, because 133325 - 2² = 133321 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133321) 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 5 ways as a sum of consecutive naturals, for example, 2642 + ... + 2691.

It is an arithmetic number, because the mean of its divisors is an integer number (27559).

2¹³³³²⁵ is an apocalyptic number.

It is an amenable number.

133325 is a deficient number, since it is larger than the sum of its proper divisors (32029).

133325 is an equidigital number, since it uses as much as digits as its factorization.

133325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5343 (or 5338 counting only the distinct ones).

The product of its digits is 270, while the sum is 17.

The square root of 133325 is about 365.1369606052. The cubic root of 133325 is about 51.0862311521.

Adding to 133325 its reverse (523331), we get a palindrome (656656).

The spelling of 133325 in words is "one hundred thirty-three thousand, three hundred twenty-five".