133424242 has 16 divisors (see below), whose sum is σ = 238672512. Its totient is φ = 54695520.

The previous prime is 133424237. The next prime is 133424281. The reversal of 133424242 is 242424331.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 206859 + ... + 207502.

It is an arithmetic number, because the mean of its divisors is an integer number (14917032).

Almost surely, 2^133424242 is an apocalyptic number.

133424242 is a deficient number, since it is larger than the sum of its proper divisors (105248270).

133424242 is a wasteful number, since it uses less digits than its factorization.

133424242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414393.

The product of its digits is 4608, while the sum is 25.

The square root of 133424242 is about 11550.9411737745. The cubic root of 133424242 is about 510.9890354991.

Adding to 133424242 its reverse (242424331), we get a palindrome (375848573).

The spelling of 133424242 in words is "one hundred thirty-three million, four hundred twenty-four thousand, two hundred forty-two".