281322 has 12 divisors (see below), whose sum is σ = 609570. Its totient is φ = 93768.

The previous prime is 281321. The next prime is 281327. The reversal of 281322 is 223182.

It is a happy number.

281322 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 145161 + 136161 = 381^2 + 369^2 .

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: 15629 = 281322 / (2 + 8 + 1 + 3 + 2 + 2).

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁴ + 8⁶ + 3⁶ + 1 + 2¹¹ + 2¹⁴ .

It is a junction number, because it is equal to n+sod(n) for n = 281295 and 281304.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 281322.

It is not an unprimeable number, because it can be changed into a prime (281321) 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, 7797 + ... + 7832.

2²⁸¹³²² is an apocalyptic number.

281322 is an abundant number, since it is smaller than the sum of its proper divisors (328248).

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

281322 is a wasteful number, since it uses less digits than its factorization.

281322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15637 (or 15634 counting only the distinct ones).

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

The square root of 281322 is about 530.3979637970. The cubic root of 281322 is about 65.5241252932.

The spelling of 281322 in words is "two hundred eighty-one thousand, three hundred twenty-two".