225284123 has 4 divisors (see below), whose sum is σ = 225376008. Its totient is φ = 225192240.

The previous prime is 225284117. The next prime is 225284179. The reversal of 225284123 is 321482522.

225284123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225284123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225284183) 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, 42161 + ... + 47202.

It is an arithmetic number, because the mean of its divisors is an integer number (56344002).

Almost surely, 2^225284123 is an apocalyptic number.

225284123 is a deficient number, since it is larger than the sum of its proper divisors (91885).

225284123 is an equidigital number, since it uses as much as digits as its factorization.

225284123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91884.

The product of its digits is 7680, while the sum is 29.

The square root of 225284123 is about 15009.4677787055. The cubic root of 225284123 is about 608.4761057193.

The spelling of 225284123 in words is "two hundred twenty-five million, two hundred eighty-four thousand, one hundred twenty-three".