322249 has 2 divisors, whose sum is σ = 322250. Its totient is φ = 322248.

The previous prime is 322247. The next prime is 322261. The reversal of 322249 is 942223.

322249 = T₄₆₂ + T₄₆₃ + T₄₆₄.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313600 + 8649 = 560^2 + 93^2 .

It is an emirp because it is prime and its reverse (942223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 322249 - 2¹ = 322247 is a prime.

Together with 322247, it forms a pair of twin primes.

322249 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (322243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161124 + 161125.

It is an arithmetic number, because the mean of its divisors is an integer number (161125).

2³²²²⁴⁹ is an apocalyptic number.

322249 is the 464-th centered triangular number.

It is an amenable number.

322249 is a deficient number, since it is larger than the sum of its proper divisors (1).

322249 is an equidigital number, since it uses as much as digits as its factorization.

322249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 22.

The square root of 322249 is about 567.6697983864. The cubic root of 322249 is about 68.5589029287.

The spelling of 322249 in words is "three hundred twenty-two thousand, two hundred forty-nine".