225351128 has 8 divisors (see below), whose sum is σ = 422533380. Its totient is φ = 112675560.

The previous prime is 225351103. The next prime is 225351143. The reversal of 225351128 is 821153522.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 225351128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14084438 + ... + 14084453.

Almost surely, 2^225351128 is an apocalyptic number.

It is an amenable number.

225351128 is a deficient number, since it is larger than the sum of its proper divisors (197182252).

225351128 is a wasteful number, since it uses less digits than its factorization.

225351128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28168897 (or 28168893 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 225351128 is about 15011.6997038976. The cubic root of 225351128 is about 608.5364249575.

The spelling of 225351128 in words is "two hundred twenty-five million, three hundred fifty-one thousand, one hundred twenty-eight".