133220524 has 6 divisors (see below), whose sum is σ = 233135924. Its totient is φ = 66610260.

The previous prime is 133220459. The next prime is 133220543. The reversal of 133220524 is 425022331.

It is a junction number, because it is equal to n+sod(n) for n = 133220495 and 133220504.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16652562 + ... + 16652569.

Almost surely, 2^133220524 is an apocalyptic number.

It is an amenable number.

133220524 is a deficient number, since it is larger than the sum of its proper divisors (99915400).

133220524 is a wasteful number, since it uses less digits than its factorization.

133220524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33305135 (or 33305133 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 133220524 is about 11542.1195627146. The cubic root of 133220524 is about 510.7288361829.

Adding to 133220524 its reverse (425022331), we get a palindrome (558242855).

The spelling of 133220524 in words is "one hundred thirty-three million, two hundred twenty thousand, five hundred twenty-four".