2282321 has 2 divisors, whose sum is σ = 2282322. Its totient is φ = 2282320.

The previous prime is 2282303. The next prime is 2282323. The reversal of 2282321 is 1232822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2070721 + 211600 = 1439^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 2282321 - 2⁶ = 2282257 is a prime.

Together with 2282323, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2282293 and 2282302.

It is not a weakly prime, because it can be changed into another prime (2282323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1141160 + 1141161.

It is an arithmetic number, because the mean of its divisors is an integer number (1141161).

2^2282321 is an apocalyptic number.

It is an amenable number.

2282321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2282321 is an equidigital number, since it uses as much as digits as its factorization.

2282321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 20.

The square root of 2282321 is about 1510.7352514587. The cubic root of 2282321 is about 131.6615333860.

The spelling of 2282321 in words is "two million, two hundred eighty-two thousand, three hundred twenty-one".