225243 has 12 divisors (see below), whose sum is σ = 336960. Its totient is φ = 144816.

The previous prime is 225241. The next prime is 225257. The reversal of 225243 is 342522.

225243 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 225243 - 2¹ = 225241 is a prime.

225243 is a modest number, since divided by 243 gives 225 as remainder.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171 + ... + 692.

It is an arithmetic number, because the mean of its divisors is an integer number (28080).

2²²⁵²⁴³ is an apocalyptic number.

225243 is a deficient number, since it is larger than the sum of its proper divisors (111717).

225243 is a wasteful number, since it uses less digits than its factorization.

225243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898 (or 895 counting only the distinct ones).

The product of its digits is 480, while the sum is 18.

The square root of 225243 is about 474.5977243940. The cubic root of 225243 is about 60.8439080051.

Adding to 225243 its reverse (342522), we get a palindrome (567765).

The spelling of 225243 in words is "two hundred twenty-five thousand, two hundred forty-three".