225144205 has 32 divisors (see below), whose sum is σ = 334131840. Its totient is φ = 143182080.

The previous prime is 225144163. The next prime is 225144221. The reversal of 225144205 is 502441522.

It is not a de Polignac number, because 225144205 - 2¹¹ = 225142157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225144205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5299 + ... + 21871.

It is an arithmetic number, because the mean of its divisors is an integer number (10441620).

Almost surely, 2^225144205 is an apocalyptic number.

It is an amenable number.

225144205 is a deficient number, since it is larger than the sum of its proper divisors (108987635).

225144205 is a wasteful number, since it uses less digits than its factorization.

225144205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16621.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 225144205 is about 15004.8060633918. The cubic root of 225144205 is about 608.3501101689.

Adding to 225144205 its reverse (502441522), we get a palindrome (727585727).

It can be divided in two parts, 22514420 and 5, that multiplied together give a square (112572100 = 10610²).

The spelling of 225144205 in words is "two hundred twenty-five million, one hundred forty-four thousand, two hundred five".