133563128 has 16 divisors (see below), whose sum is σ = 258509760. Its totient is φ = 64627200.

The previous prime is 133563109. The next prime is 133563137. The reversal of 133563128 is 821365331.

133563128 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×133563128² = 35678218322288768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133563094 and 133563103.

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, 269033 + ... + 269528.

It is an arithmetic number, because the mean of its divisors is an integer number (16156860).

Almost surely, 2^133563128 is an apocalyptic number.

It is an amenable number.

133563128 is a deficient number, since it is larger than the sum of its proper divisors (124946632).

133563128 is a wasteful number, since it uses less digits than its factorization.

133563128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538598 (or 538594 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 133563128 is about 11556.9515011529. The cubic root of 133563128 is about 511.1662761853.

The spelling of 133563128 in words is "one hundred thirty-three million, five hundred sixty-three thousand, one hundred twenty-eight".