128841854 has 16 divisors (see below), whose sum is σ = 196771680. Its totient is φ = 63258720.

The previous prime is 128841851. The next prime is 128841877. The reversal of 128841854 is 458148821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128841851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36512 + ... + 39884.

It is an arithmetic number, because the mean of its divisors is an integer number (12298230).

Almost surely, 2^128841854 is an apocalyptic number.

128841854 is a deficient number, since it is larger than the sum of its proper divisors (67929826).

128841854 is a wasteful number, since it uses less digits than its factorization.

128841854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715.

The product of its digits is 81920, while the sum is 41.

The square root of 128841854 is about 11350.8525670982. The cubic root of 128841854 is about 505.0708706863.

The spelling of 128841854 in words is "one hundred twenty-eight million, eight hundred forty-one thousand, eight hundred fifty-four".