133300424 has 8 divisors (see below), whose sum is σ = 249938310. Its totient is φ = 66650208.

The previous prime is 133300421. The next prime is 133300429. The reversal of 133300424 is 424003331.

It can be written as a sum of positive squares in only one way, i.e., 131836324 + 1464100 = 11482^2 + 1210^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 133300396 and 133300405.

It is not an unprimeable number, because it can be changed into a prime (133300421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8331269 + ... + 8331284.

Almost surely, 2^133300424 is an apocalyptic number.

It is an amenable number.

133300424 is a deficient number, since it is larger than the sum of its proper divisors (116637886).

133300424 is a wasteful number, since it uses less digits than its factorization.

133300424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16662559 (or 16662555 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 133300424 is about 11545.5802799166. The cubic root of 133300424 is about 510.8309202496.

Adding to 133300424 its reverse (424003331), we get a palindrome (557303755).

The spelling of 133300424 in words is "one hundred thirty-three million, three hundred thousand, four hundred twenty-four".