225345243 has 4 divisors (see below), whose sum is σ = 300460328. Its totient is φ = 150230160.

The previous prime is 225345227. The next prime is 225345269. The reversal of 225345243 is 342543522.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 225345243 - 2⁴ = 225345227 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 225345243.

It is not an unprimeable number, because it can be changed into a prime (225345223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37557538 + ... + 37557543.

It is an arithmetic number, because the mean of its divisors is an integer number (75115082).

Almost surely, 2^225345243 is an apocalyptic number.

225345243 is a deficient number, since it is larger than the sum of its proper divisors (75115085).

225345243 is an equidigital number, since it uses as much as digits as its factorization.

225345243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75115084.

The product of its digits is 28800, while the sum is 30.

The square root of 225345243 is about 15011.5036888381. The cubic root of 225345243 is about 608.5311276421.

Adding to 225345243 its reverse (342543522), we get a palindrome (567888765).

The spelling of 225345243 in words is "two hundred twenty-five million, three hundred forty-five thousand, two hundred forty-three".