133013223 has 12 divisors (see below), whose sum is σ = 219577488. Its totient is φ = 76007520.

The previous prime is 133013213. The next prime is 133013249. The reversal of 133013223 is 322310331.

It is not a de Polignac number, because 133013223 - 2⁴ = 133013207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133013196 and 133013205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133013203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1055598 + ... + 1055723.

It is an arithmetic number, because the mean of its divisors is an integer number (18298124).

Almost surely, 2^133013223 is an apocalyptic number.

133013223 is a deficient number, since it is larger than the sum of its proper divisors (86564265).

133013223 is a wasteful number, since it uses less digits than its factorization.

133013223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111334 (or 2111331 counting only the distinct ones).

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

The square root of 133013223 is about 11533.1358701786. The cubic root of 133013223 is about 510.4637880280.

Adding to 133013223 its reverse (322310331), we get a palindrome (455323554).

The spelling of 133013223 in words is "one hundred thirty-three million, thirteen thousand, two hundred twenty-three".