3182321 has 2 divisors, whose sum is σ = 3182322. Its totient is φ = 3182320.

The previous prime is 3182317. The next prime is 3182341. The reversal of 3182321 is 1232813.

3182321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (3182341) can be obtained adding 3182321 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2640625 + 541696 = 1625^2 + 736^2 .

It is a cyclic number.

It is not a de Polignac number, because 3182321 - 2² = 3182317 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3182293 and 3182302.

It is not a weakly prime, because it can be changed into another prime (3182341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1591160 + 1591161.

It is an arithmetic number, because the mean of its divisors is an integer number (1591161).

Almost surely, 2^3182321 is an apocalyptic number.

It is an amenable number.

3182321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3182321 is an equidigital number, since it uses as much as digits as its factorization.

3182321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

The square root of 3182321 is about 1783.9061073947. The cubic root of 3182321 is about 147.0893836818.

The spelling of 3182321 in words is "three million, one hundred eighty-two thousand, three hundred twenty-one".