128851853 has 16 divisors (see below), whose sum is σ = 140743680. Its totient is φ = 117956592.

The previous prime is 128851837. The next prime is 128851859. The reversal of 128851853 is 358158821.

It is not a de Polignac number, because 128851853 - 2⁴ = 128851837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128851853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128851859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489800 + ... + 490062.

It is an arithmetic number, because the mean of its divisors is an integer number (8796480).

Almost surely, 2^128851853 is an apocalyptic number.

128851853 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

128851853 is a deficient number, since it is larger than the sum of its proper divisors (11891827).

128851853 is an equidigital number, since it uses as much as digits as its factorization.

128851853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 499 counting only the distinct ones).

The product of its digits is 76800, while the sum is 41.

The square root of 128851853 is about 11351.2930100496. The cubic root of 128851853 is about 505.0839359878.

The spelling of 128851853 in words is "one hundred twenty-eight million, eight hundred fifty-one thousand, eight hundred fifty-three".