128318 has 8 divisors (see below), whose sum is σ = 195048. Its totient is φ = 63304.

The previous prime is 128311. The next prime is 128321. The reversal of 128318 is 813821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 128293 and 128302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221 + ... + 552.

It is an arithmetic number, because the mean of its divisors is an integer number (24381).

2¹²⁸³¹⁸ is an apocalyptic number.

128318 is a deficient number, since it is larger than the sum of its proper divisors (66730).

128318 is an equidigital number, since it uses as much as digits as its factorization.

128318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858.

The product of its digits is 384, while the sum is 23.

The square root of 128318 is about 358.2150192273. The cubic root of 128318 is about 50.4385423665.

It can be divided in two parts, 128 and 318, that multiplied together give a palindrome (40704).

The spelling of 128318 in words is "one hundred twenty-eight thousand, three hundred eighteen".