128553232 has 20 divisors (see below), whose sum is σ = 249404176. Its totient is φ = 64190880.

The previous prime is 128553223. The next prime is 128553241. The reversal of 128553232 is 232355821.

It is an interprime number because it is at equal distance from previous prime (128553223) and next prime (128553241).

It is a junction number, because it is equal to n+sod(n) for n = 128553194 and 128553203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8023 + ... + 17929.

Almost surely, 2^128553232 is an apocalyptic number.

It is an amenable number.

128553232 is a deficient number, since it is larger than the sum of its proper divisors (120850944).

128553232 is an equidigital number, since it uses as much as digits as its factorization.

128553232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10726 (or 10720 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 128553232 is about 11338.1317685058. The cubic root of 128553232 is about 504.6934479076.

The spelling of 128553232 in words is "one hundred twenty-eight million, five hundred fifty-three thousand, two hundred thirty-two".