133223 has 4 divisors (see below), whose sum is σ = 134400. Its totient is φ = 132048.

The previous prime is 133213. The next prime is 133241. The reversal of 133223 is 322331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322331 = 97 ⋅3323.

It is a cyclic number.

It is not a de Polignac number, because 133223 - 2⁸ = 132967 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 133198 and 133207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133213) 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, 398 + ... + 651.

It is an arithmetic number, because the mean of its divisors is an integer number (33600).

2¹³³²²³ is an apocalyptic number.

133223 is a deficient number, since it is larger than the sum of its proper divisors (1177).

133223 is a wasteful number, since it uses less digits than its factorization.

133223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176.

The product of its digits is 108, while the sum is 14.

The square root of 133223 is about 364.9972602637. The cubic root of 133223 is about 51.0732000252.

Adding to 133223 its product of digits (108), we get a palindrome (133331).

Adding to 133223 its reverse (322331), we get a palindrome (455554).

The spelling of 133223 in words is "one hundred thirty-three thousand, two hundred twenty-three".