128535385 has 64 divisors (see below), whose sum is σ = 191600640. Its totient is φ = 81607680.

The previous prime is 128535383. The next prime is 128535397. The reversal of 128535385 is 583535821.

It is a happy number.

It is not a de Polignac number, because 128535385 - 2¹ = 128535383 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (128535383) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 924646 + ... + 924784.

It is an arithmetic number, because the mean of its divisors is an integer number (2993760).

Almost surely, 2^128535385 is an apocalyptic number.

It is an amenable number.

128535385 is a deficient number, since it is larger than the sum of its proper divisors (63065255).

128535385 is a wasteful number, since it uses less digits than its factorization.

128535385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238.

The product of its digits is 144000, while the sum is 40.

The square root of 128535385 is about 11337.3447067645. The cubic root of 128535385 is about 504.6700913554.

The spelling of 128535385 in words is "one hundred twenty-eight million, five hundred thirty-five thousand, three hundred eighty-five".