128654136 has 64 divisors (see below), whose sum is σ = 384871200. Its totient is φ = 39585024.

The previous prime is 128654089. The next prime is 128654159. The reversal of 128654136 is 631456821.

It is a happy number.

128654136 is a `hidden beast` number, since 1 + 2 + 86 + 541 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 128654136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20101 + ... + 25716.

Almost surely, 2^128654136 is an apocalyptic number.

It is an amenable number.

128654136 is an abundant number, since it is smaller than the sum of its proper divisors (256217064).

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

128654136 is a wasteful number, since it uses less digits than its factorization.

128654136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45845 (or 45835 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 128654136 is about 11342.5806587390. The cubic root of 128654136 is about 504.8254613636.

The spelling of 128654136 in words is "one hundred twenty-eight million, six hundred fifty-four thousand, one hundred thirty-six".