128933030 has 32 divisors (see below), whose sum is σ = 242500608. Its totient is φ = 49298400.

The previous prime is 128933023. The next prime is 128933039. The reversal of 128933030 is 30339821.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 128932984 and 128933002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128933039) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 23225 + ... + 28235.

It is an arithmetic number, because the mean of its divisors is an integer number (7578144).

Almost surely, 2^128933030 is an apocalyptic number.

128933030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128933030 is a deficient number, since it is larger than the sum of its proper divisors (113567578).

128933030 is a wasteful number, since it uses less digits than its factorization.

128933030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5132.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 128933030 is about 11354.8681190052. The cubic root of 128933030 is about 505.1899817823.

The spelling of 128933030 in words is "one hundred twenty-eight million, nine hundred thirty-three thousand, thirty".