133103223 has 16 divisors (see below), whose sum is σ = 215116800. Its totient is φ = 80668440.

The previous prime is 133103219. The next prime is 133103263. The reversal of 133103223 is 322301331.

It is not a de Polignac number, because 133103223 - 2² = 133103219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133103196 and 133103205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133103213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223783 + ... + 224376.

It is an arithmetic number, because the mean of its divisors is an integer number (13444800).

Almost surely, 2^133103223 is an apocalyptic number.

133103223 is a deficient number, since it is larger than the sum of its proper divisors (82013577).

133103223 is a wasteful number, since it uses less digits than its factorization.

133103223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448179 (or 448173 counting only the distinct ones).

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

The square root of 133103223 is about 11537.0370112954. The cubic root of 133103223 is about 510.5788928324.

Adding to 133103223 its reverse (322301331), we get a palindrome (455404554).

The spelling of 133103223 in words is "one hundred thirty-three million, one hundred three thousand, two hundred twenty-three".