225544143 has 8 divisors (see below), whose sum is σ = 328064256. Its totient is φ = 136693400.

The previous prime is 225544139. The next prime is 225544171. The reversal of 225544143 is 341445522.

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

It is a cyclic number.

It is not a de Polignac number, because 225544143 - 2² = 225544139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225544143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225544133) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3417303 + ... + 3417368.

It is an arithmetic number, because the mean of its divisors is an integer number (41008032).

Almost surely, 2^225544143 is an apocalyptic number.

225544143 is a deficient number, since it is larger than the sum of its proper divisors (102520113).

225544143 is a wasteful number, since it uses less digits than its factorization.

225544143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6834685.

The product of its digits is 19200, while the sum is 30.

The square root of 225544143 is about 15018.1271468849. The cubic root of 225544143 is about 608.7101141108.

Adding to 225544143 its reverse (341445522), we get a palindrome (566989665).

The spelling of 225544143 in words is "two hundred twenty-five million, five hundred forty-four thousand, one hundred forty-three".