321325 has 6 divisors (see below), whose sum is σ = 398474. Its totient is φ = 257040.
The previous prime is 321323. The next prime is 321329. The reversal of 321325 is 523123.
It can be written as a sum of positive squares in 3 ways, for example, as 4356 + 316969 = 66^2 + 563^2 .
It is not a de Polignac number, because 321325 - 21 = 321323 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 321299 and 321308.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (321323) 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 5 ways as a sum of consecutive naturals, for example, 6402 + ... + 6451.
2321325 is an apocalyptic number.
It is an amenable number.
321325 is a deficient number, since it is larger than the sum of its proper divisors (77149).
321325 is a wasteful number, since it uses less digits than its factorization.
321325 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12863 (or 12858 counting only the distinct ones).
The product of its digits is 180, while the sum is 16.
The square root of 321325 is about 566.8553607403. The cubic root of 321325 is about 68.4933127896.
Adding to 321325 its reverse (523123), we get a palindrome (844448).
It can be divided in two parts, 321 and 325, that added together give a palindrome (646).
The spelling of 321325 in words is "three hundred twenty-one thousand, three hundred twenty-five".
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