228325 has 6 divisors (see below), whose sum is σ = 283154. Its totient is φ = 182640.

The previous prime is 228311. The next prime is 228331. The reversal of 228325 is 523822.

It can be written as a sum of positive squares in 3 ways, for example, as 36481 + 191844 = 191^2 + 438^2 .

It is not a de Polignac number, because 228325 - 2⁷ = 228197 is a prime.

It is a Duffinian number.

228325 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 228296 and 228305.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4542 + ... + 4591.

2²²⁸³²⁵ is an apocalyptic number.

228325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228325 is a deficient number, since it is larger than the sum of its proper divisors (54829).

228325 is an equidigital number, since it uses as much as digits as its factorization.

228325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9143 (or 9138 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 228325 is about 477.8336530635. The cubic root of 228325 is about 61.1201608881.

It can be divided in two parts, 2283 and 25, that multiplied together give a palindrome (57075).

The spelling of 228325 in words is "two hundred twenty-eight thousand, three hundred twenty-five".