133065328 has 20 divisors (see below), whose sum is σ = 281252088. Its totient is φ = 60484160.

The previous prime is 133065323. The next prime is 133065329. The reversal of 133065328 is 823560331.

It is a self number, because there is not a number n which added to its sum of digits gives 133065328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133065323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377851 + ... + 378202.

Almost surely, 2^133065328 is an apocalyptic number.

It is an amenable number.

133065328 is an abundant number, since it is smaller than the sum of its proper divisors (148186760).

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

133065328 is a wasteful number, since it uses less digits than its factorization.

133065328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756072 (or 756066 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 133065328 is about 11535.3945749593. The cubic root of 133065328 is about 510.5304336412.

The spelling of 133065328 in words is "one hundred thirty-three million, sixty-five thousand, three hundred twenty-eight".