133205024 has 12 divisors (see below), whose sum is σ = 262247454. Its totient is φ = 66602496.

The previous prime is 133205011. The next prime is 133205027. The reversal of 133205024 is 420502331.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 131515024 + 1690000 = 11468^2 + 1300^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133204987 and 133205005.

It is not an unprimeable number, because it can be changed into a prime (133205027) 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, 2081297 + ... + 2081360.

Almost surely, 2^133205024 is an apocalyptic number.

It is an amenable number.

133205024 is a deficient number, since it is larger than the sum of its proper divisors (129042430).

133205024 is an equidigital number, since it uses as much as digits as its factorization.

133205024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162667 (or 4162659 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 133205024 is about 11541.4480893864. The cubic root of 133205024 is about 510.7090279137.

Adding to 133205024 its reverse (420502331), we get a palindrome (553707355).

The spelling of 133205024 in words is "one hundred thirty-three million, two hundred five thousand, twenty-four".