225604123 has 4 divisors (see below), whose sum is σ = 225832768. Its totient is φ = 225375480.

The previous prime is 225604103. The next prime is 225604129. The reversal of 225604123 is 321406522.

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 225604123 - 2⁹ = 225603611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225604129) 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, 112836 + ... + 114817.

It is an arithmetic number, because the mean of its divisors is an integer number (56458192).

Almost surely, 2^225604123 is an apocalyptic number.

225604123 is a deficient number, since it is larger than the sum of its proper divisors (228645).

225604123 is an equidigital number, since it uses as much as digits as its factorization.

225604123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228644.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 225604123 is about 15020.1239342424. The cubic root of 225604123 is about 608.7640683629.

The spelling of 225604123 in words is "two hundred twenty-five million, six hundred four thousand, one hundred twenty-three".