225004123 has 4 divisors (see below), whose sum is σ = 225086760. Its totient is φ = 224921488.

The previous prime is 225004121. The next prime is 225004151. The reversal of 225004123 is 321400522.

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 225004123 - 2¹ = 225004121 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 225004123.

It is not an unprimeable number, because it can be changed into a prime (225004121) 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, 37090 + ... + 42727.

It is an arithmetic number, because the mean of its divisors is an integer number (56271690).

Almost surely, 2^225004123 is an apocalyptic number.

225004123 is a deficient number, since it is larger than the sum of its proper divisors (82637).

225004123 is an equidigital number, since it uses as much as digits as its factorization.

225004123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82636.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 225004123 is about 15000.1374327037. The cubic root of 225004123 is about 608.2239146337.

Adding to 225004123 its reverse (321400522), we get a palindrome (546404645).

The spelling of 225004123 in words is "two hundred twenty-five million, four thousand, one hundred twenty-three".