225301243 has 4 divisors (see below), whose sum is σ = 228994768. Its totient is φ = 221607720.

The previous prime is 225301231. The next prime is 225301249. The reversal of 225301243 is 342103522.

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

It is a cyclic number.

It is not a de Polignac number, because 225301243 - 2⁹ = 225300731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225301249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1846671 + ... + 1846792.

It is an arithmetic number, because the mean of its divisors is an integer number (57248692).

Almost surely, 2^225301243 is an apocalyptic number.

225301243 is a deficient number, since it is larger than the sum of its proper divisors (3693525).

225301243 is an equidigital number, since it uses as much as digits as its factorization.

225301243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3693524.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 225301243 is about 15010.0380745686. The cubic root of 225301243 is about 608.4915186224.

Adding to 225301243 its reverse (342103522), we get a palindrome (567404765).

The spelling of 225301243 in words is "two hundred twenty-five million, three hundred one thousand, two hundred forty-three".