133894528 has 16 divisors (see below), whose sum is σ = 266743260. Its totient is φ = 66947200.

The previous prime is 133894517. The next prime is 133894531. The reversal of 133894528 is 825498331.

It is a tau number, because it is divible by the number of its divisors (16).

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 as a sum of consecutive naturals, namely, 522898 + ... + 523153.

Almost surely, 2^133894528 is an apocalyptic number.

It is an amenable number.

133894528 is a deficient number, since it is larger than the sum of its proper divisors (132848732).

133894528 is an equidigital number, since it uses as much as digits as its factorization.

133894528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046065 (or 1046053 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 133894528 is about 11571.2803094558. The cubic root of 133894528 is about 511.5886996302.

The spelling of 133894528 in words is "one hundred thirty-three million, eight hundred ninety-four thousand, five hundred twenty-eight".