128982625 has 16 divisors (see below), whose sum is σ = 161650944. Its totient is φ = 102750000.

The previous prime is 128982613. The next prime is 128982631. The reversal of 128982625 is 526289821.

It is not a de Polignac number, because 128982625 - 2²³ = 120594017 is a prime.

It is a Duffinian number.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 29320 + ... + 33430.

It is an arithmetic number, because the mean of its divisors is an integer number (10103184).

Almost surely, 2^128982625 is an apocalyptic number.

It is an amenable number.

128982625 is a deficient number, since it is larger than the sum of its proper divisors (32668319).

128982625 is an equidigital number, since it uses as much as digits as its factorization.

128982625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377 (or 4367 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 128982625 is about 11357.0517741181. The cubic root of 128982625 is about 505.2547484428.

The spelling of 128982625 in words is "one hundred twenty-eight million, nine hundred eighty-two thousand, six hundred twenty-five".