128855486 has 8 divisors (see below), whose sum is σ = 196005744. Its totient is φ = 63520240.

The previous prime is 128855459. The next prime is 128855491. The reversal of 128855486 is 684558821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 128855486.

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, 453575 + ... + 453858.

It is an arithmetic number, because the mean of its divisors is an integer number (24500718).

Almost surely, 2^128855486 is an apocalyptic number.

128855486 is a deficient number, since it is larger than the sum of its proper divisors (67150258).

128855486 is an equidigital number, since it uses as much as digits as its factorization.

128855486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907506.

The product of its digits is 614400, while the sum is 47.

The square root of 128855486 is about 11351.4530347441. The cubic root of 128855486 is about 505.0886829191.

The spelling of 128855486 in words is "one hundred twenty-eight million, eight hundred fifty-five thousand, four hundred eighty-six".