128585086 has 16 divisors (see below), whose sum is σ = 227543040. Its totient is φ = 53330040.

The previous prime is 128585081. The next prime is 128585099. The reversal of 128585086 is 680585821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128585081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147706 + ... + 148573.

It is an arithmetic number, because the mean of its divisors is an integer number (14221440).

Almost surely, 2^128585086 is an apocalyptic number.

128585086 is a deficient number, since it is larger than the sum of its proper divisors (98957954).

128585086 is a wasteful number, since it uses less digits than its factorization.

128585086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296319.

The product of its (nonzero) digits is 153600, while the sum is 43.

The square root of 128585086 is about 11339.5364102771. The cubic root of 128585086 is about 504.7351301928.

The spelling of 128585086 in words is "one hundred twenty-eight million, five hundred eighty-five thousand, eighty-six".