133113223 has 4 divisors (see below), whose sum is σ = 133272720. Its totient is φ = 132953728.

The previous prime is 133113199. The next prime is 133113229. The reversal of 133113223 is 322311331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322311331 = 1597 ⋅201823.

It is a cyclic number.

It is not a de Polignac number, because 133113223 - 2⁹ = 133112711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133113223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133113229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78490 + ... + 80167.

It is an arithmetic number, because the mean of its divisors is an integer number (33318180).

Almost surely, 2^133113223 is an apocalyptic number.

133113223 is a deficient number, since it is larger than the sum of its proper divisors (159497).

133113223 is an equidigital number, since it uses as much as digits as its factorization.

133113223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159496.

The product of its digits is 324, while the sum is 19.

The square root of 133113223 is about 11537.4703899945. The cubic root of 133113223 is about 510.5916790519.

Adding to 133113223 its reverse (322311331), we get a palindrome (455424554).

The spelling of 133113223 in words is "one hundred thirty-three million, one hundred thirteen thousand, two hundred twenty-three".