133503223 has 16 divisors (see below), whose sum is σ = 154430464. Its totient is φ = 113050080.

The previous prime is 133503191. The next prime is 133503229. The reversal of 133503223 is 322305331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 133503223 - 2⁵ = 133503191 is a prime.

It is a super-2 number, since 2×133503223² = 35646221102775458, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133503194 and 133503203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133503229) 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, 363586 + ... + 363952.

It is an arithmetic number, because the mean of its divisors is an integer number (9651904).

Almost surely, 2^133503223 is an apocalyptic number.

133503223 is a deficient number, since it is larger than the sum of its proper divisors (20927241).

133503223 is a wasteful number, since it uses less digits than its factorization.

133503223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 133503223 is about 11554.3594803001. The cubic root of 133503223 is about 511.0898429276.

Adding to 133503223 its reverse (322305331), we get a palindrome (455808554).

The spelling of 133503223 in words is "one hundred thirty-three million, five hundred three thousand, two hundred twenty-three".