322745 has 8 divisors (see below), whose sum is σ = 410184. Its totient is φ = 242944.

The previous prime is 322727. The next prime is 322747. The reversal of 322745 is 547223.

It can be written as a sum of positive squares in 4 ways, for example, as 5776 + 316969 = 76^2 + 563^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 322745 - 2¹⁰ = 321721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 322745.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322747) 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 in 7 ways as a sum of consecutive naturals, for example, 1814 + ... + 1983.

It is an arithmetic number, because the mean of its divisors is an integer number (51273).

2³²²⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

322745 is a deficient number, since it is larger than the sum of its proper divisors (87439).

322745 is a wasteful number, since it uses less digits than its factorization.

322745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3819.

The product of its digits is 1680, while the sum is 23.

The square root of 322745 is about 568.1065040994. The cubic root of 322745 is about 68.5940597836.

Adding to 322745 its reverse (547223), we get a palindrome (869968).

The spelling of 322745 in words is "three hundred twenty-two thousand, seven hundred forty-five".