128055902 has 16 divisors (see below), whose sum is σ = 207058992. Its totient is φ = 59045760.

The previous prime is 128055899. The next prime is 128055911. The reversal of 128055902 is 209550821.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 38198 + ... + 41414.

It is an arithmetic number, because the mean of its divisors is an integer number (12941187).

Almost surely, 2^128055902 is an apocalyptic number.

128055902 is a deficient number, since it is larger than the sum of its proper divisors (79003090).

128055902 is a wasteful number, since it uses less digits than its factorization.

128055902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4763.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 128055902 is about 11316.1787720060. The cubic root of 128055902 is about 504.0417760576.

The spelling of 128055902 in words is "one hundred twenty-eight million, fifty-five thousand, nine hundred two".