133004528 has 20 divisors (see below), whose sum is σ = 258357720. Its totient is φ = 66331584.

The previous prime is 133004519. The next prime is 133004551. The reversal of 133004528 is 825400331.

It is a junction number, because it is equal to n+sod(n) for n = 133004497 and 133004506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4118 + ... + 16821.

It is an arithmetic number, because the mean of its divisors is an integer number (12917886).

Almost surely, 2^133004528 is an apocalyptic number.

It is an amenable number.

133004528 is a deficient number, since it is larger than the sum of its proper divisors (125353192).

133004528 is a wasteful number, since it uses less digits than its factorization.

133004528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21344 (or 21338 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 133004528 is about 11532.7589066970. The cubic root of 133004528 is about 510.4526648749.

Adding to 133004528 its reverse (825400331), we get a palindrome (958404859).

The spelling of 133004528 in words is "one hundred thirty-three million, four thousand, five hundred twenty-eight".