225331243 has 8 divisors (see below), whose sum is σ = 238785840. Its totient is φ = 211898880.

The previous prime is 225331199. The next prime is 225331259. The reversal of 225331243 is 342133522.

225331243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-225331243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225331273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18268 + ... + 28006.

It is an arithmetic number, because the mean of its divisors is an integer number (29848230).

Almost surely, 2^225331243 is an apocalyptic number.

225331243 is a deficient number, since it is larger than the sum of its proper divisors (13454597).

225331243 is a wasteful number, since it uses less digits than its factorization.

225331243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11117.

The product of its digits is 4320, while the sum is 25.

The square root of 225331243 is about 15011.0373725469. The cubic root of 225331243 is about 608.5185253315.

Adding to 225331243 its reverse (342133522), we get a palindrome (567464765).

The spelling of 225331243 in words is "two hundred twenty-five million, three hundred thirty-one thousand, two hundred forty-three".