133303324 has 72 divisors (see below), whose sum is σ = 313537392. Its totient is φ = 48867840.

The previous prime is 133303279. The next prime is 133303337. The reversal of 133303324 is 423303331.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 133303295 and 133303304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34834 + ... + 38470.

It is an arithmetic number, because the mean of its divisors is an integer number (4354686).

Almost surely, 2^133303324 is an apocalyptic number.

133303324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133303324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156768696).

133303324 is an abundant number, since it is smaller than the sum of its proper divisors (180234068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133303324 is a wasteful number, since it uses less digits than its factorization.

133303324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3683 (or 3674 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 22.

The square root of 133303324 is about 11545.7058684171. The cubic root of 133303324 is about 510.8346246612.

Adding to 133303324 its reverse (423303331), we get a palindrome (556606655).

The spelling of 133303324 in words is "one hundred thirty-three million, three hundred three thousand, three hundred twenty-four".