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325813 is a prime number
BaseRepresentation
bin1001111100010110101
3121112221011
41033202311
540411223
610552221
72524615
oct1174265
9545834
10325813
11202874
12138671
13b53b7
1486a45
156680d
hex4f8b5

325813 has 2 divisors, whose sum is σ = 325814. Its totient is φ = 325812.

The previous prime is 325807. The next prime is 325849. The reversal of 325813 is 318523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208849 + 116964 = 457^2 + 342^2 .

It is an emirp because it is prime and its reverse (318523) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 325813 - 25 = 325781 is a prime.

It is a super-2 number, since 2×3258132 = 212308221938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325883) 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, 162906 + 162907.

It is an arithmetic number, because the mean of its divisors is an integer number (162907).

2325813 is an apocalyptic number.

It is an amenable number.

325813 is a deficient number, since it is larger than the sum of its proper divisors (1).

325813 is an equidigital number, since it uses as much as digits as its factorization.

325813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 22.

The square root of 325813 is about 570.8003153468. The cubic root of 325813 is about 68.8107254101.

The spelling of 325813 in words is "three hundred twenty-five thousand, eight hundred thirteen".