128105230 has 16 divisors (see below), whose sum is σ = 251552304. Its totient is φ = 46583680.

The previous prime is 128105207. The next prime is 128105231. The reversal of 128105230 is 32501821.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128105231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582187 + ... + 582406.

It is an arithmetic number, because the mean of its divisors is an integer number (15722019).

Almost surely, 2^128105230 is an apocalyptic number.

128105230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128105230 is a deficient number, since it is larger than the sum of its proper divisors (123447074).

128105230 is a wasteful number, since it uses less digits than its factorization.

128105230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164611.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 128105230 is about 11318.3580964732. The cubic root of 128105230 is about 504.1064878501.

The spelling of 128105230 in words is "one hundred twenty-eight million, one hundred five thousand, two hundred thirty".