133790128 has 20 divisors (see below), whose sum is σ = 262871568. Its totient is φ = 65952320.

The previous prime is 133790117. The next prime is 133790131. The reversal of 133790128 is 821097331.

It is a junction number, because it is equal to n+sod(n) for n = 133790093 and 133790102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57751 + ... + 60022.

Almost surely, 2^133790128 is an apocalyptic number.

It is an amenable number.

133790128 is a deficient number, since it is larger than the sum of its proper divisors (129081440).

133790128 is a wasteful number, since it uses less digits than its factorization.

133790128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117852 (or 117846 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 133790128 is about 11566.7682608411. The cubic root of 133790128 is about 511.4557000506.

The spelling of 133790128 in words is "one hundred thirty-three million, seven hundred ninety thousand, one hundred twenty-eight".