128358 has 16 divisors (see below), whose sum is σ = 285360. Its totient is φ = 42768.

The previous prime is 128351. The next prime is 128377. The reversal of 128358 is 853821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1135 + ... + 1242.

It is an arithmetic number, because the mean of its divisors is an integer number (17835).

2¹²⁸³⁵⁸ is an apocalyptic number.

128358 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

128358 is an abundant number, since it is smaller than the sum of its proper divisors (157002).

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

128358 is a wasteful number, since it uses less digits than its factorization.

128358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388 (or 2382 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 128358 is about 358.2708472650. The cubic root of 128358 is about 50.4437828162.

The spelling of 128358 in words is "one hundred twenty-eight thousand, three hundred fifty-eight".