128138288 has 10 divisors (see below), whose sum is σ = 248267964. Its totient is φ = 64069136.

The previous prime is 128138251. The next prime is 128138303. The reversal of 128138288 is 882831821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4004306 + ... + 4004337.

Almost surely, 2^128138288 is an apocalyptic number.

It is an amenable number.

128138288 is a deficient number, since it is larger than the sum of its proper divisors (120129676).

128138288 is an equidigital number, since it uses as much as digits as its factorization.

128138288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8008651 (or 8008645 counting only the distinct ones).

The product of its digits is 49152, while the sum is 41.

The square root of 128138288 is about 11319.8183731012. The cubic root of 128138288 is about 504.1498462647.

The spelling of 128138288 in words is "one hundred twenty-eight million, one hundred thirty-eight thousand, two hundred eighty-eight".