128322 has 12 divisors (see below), whose sum is σ = 278070. Its totient is φ = 42768.

The previous prime is 128321. The next prime is 128327. The reversal of 128322 is 223821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 103041 + 25281 = 321^2 + 159^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 7129 = 128322 / (1 + 2 + 8 + 3 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 128295 and 128304.

It is not an unprimeable number, because it can be changed into a prime (128321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3547 + ... + 3582.

2¹²⁸³²² is an apocalyptic number.

128322 is an abundant number, since it is smaller than the sum of its proper divisors (149748).

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

128322 is a wasteful number, since it uses less digits than its factorization.

128322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7137 (or 7134 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 128322 is about 358.2206024226. The cubic root of 128322 is about 50.4390664605.

The spelling of 128322 in words is "one hundred twenty-eight thousand, three hundred twenty-two".