128585564 has 12 divisors (see below), whose sum is σ = 226644600. Its totient is φ = 63829968.

The previous prime is 128585557. The next prime is 128585599. The reversal of 128585564 is 465585821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115079 + ... + 116190.

It is an arithmetic number, because the mean of its divisors is an integer number (18887050).

Almost surely, 2^128585564 is an apocalyptic number.

It is an amenable number.

128585564 is a deficient number, since it is larger than the sum of its proper divisors (98059036).

128585564 is a wasteful number, since it uses less digits than its factorization.

128585564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231412 (or 231410 counting only the distinct ones).

The product of its digits is 384000, while the sum is 44.

The square root of 128585564 is about 11339.5574869569. The cubic root of 128585564 is about 504.7357556232.

The spelling of 128585564 in words is "one hundred twenty-eight million, five hundred eighty-five thousand, five hundred sixty-four".