128655126 has 12 divisors (see below), whose sum is σ = 278752812. Its totient is φ = 42885036.

The previous prime is 128655119. The next prime is 128655139. The reversal of 128655126 is 621556821.

128655126 is a `hidden beast` number, since 1 + 2 + 86 + 551 + 26 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3573736 + ... + 3573771.

It is an arithmetic number, because the mean of its divisors is an integer number (23229401).

Almost surely, 2^128655126 is an apocalyptic number.

128655126 is an abundant number, since it is smaller than the sum of its proper divisors (150097686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128655126 is a wasteful number, since it uses less digits than its factorization.

128655126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7147515 (or 7147512 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 128655126 is about 11342.6242995173. The cubic root of 128655126 is about 504.8267562460.

The spelling of 128655126 in words is "one hundred twenty-eight million, six hundred fifty-five thousand, one hundred twenty-six".