225123105 has 16 divisors (see below), whose sum is σ = 362087424. Its totient is φ = 119435520.

The previous prime is 225123089. The next prime is 225123127. The reversal of 225123105 is 501321522.

225123105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 225123105 - 2⁴ = 225123089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36424 + ... + 42153.

It is an arithmetic number, because the mean of its divisors is an integer number (22630464).

Almost surely, 2^225123105 is an apocalyptic number.

It is an amenable number.

225123105 is a deficient number, since it is larger than the sum of its proper divisors (136964319).

225123105 is a wasteful number, since it uses less digits than its factorization.

225123105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78776.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 225123105 is about 15004.1029388631. The cubic root of 225123105 is about 608.3311051815.

Adding to 225123105 its reverse (501321522), we get a palindrome (726444627).

The spelling of 225123105 in words is "two hundred twenty-five million, one hundred twenty-three thousand, one hundred five".