321283 has 4 divisors (see below), whose sum is σ = 340200. Its totient is φ = 302368.

The previous prime is 321247. The next prime is 321289. The reversal of 321283 is 382123.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321283 is a prime.

It is a d-powerful number, because it can be written as 3⁴ + 2¹⁷ + 2¹⁷ + 1 + 8 + 3¹⁰ .

It is a Duffinian number.

321283 is a lucky number.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 321283.

It is not an unprimeable number, because it can be changed into a prime (321289) 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, 9433 + ... + 9466.

It is an arithmetic number, because the mean of its divisors is an integer number (85050).

2³²¹²⁸³ is an apocalyptic number.

321283 is a deficient number, since it is larger than the sum of its proper divisors (18917).

321283 is a wasteful number, since it uses less digits than its factorization.

321283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18916.

The product of its digits is 288, while the sum is 19.

The square root of 321283 is about 566.8183130422. The cubic root of 321283 is about 68.4903284337.

It can be divided in two parts, 32128 and 3, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 321283 in words is "three hundred twenty-one thousand, two hundred eighty-three".