225227136 has 64 divisors (see below), whose sum is σ = 603860400. Its totient is φ = 74373120.

The previous prime is 225227129. The next prime is 225227141. The reversal of 225227136 is 631722522.

225227136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39166 + ... + 44546.

Almost surely, 2^225227136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225227136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301930200).

225227136 is an abundant number, since it is smaller than the sum of its proper divisors (378633264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225227136 is a wasteful number, since it uses less digits than its factorization.

225227136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5507 (or 5495 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 225227136 is about 15007.5692901949. The cubic root of 225227136 is about 608.4247954723.

Adding to 225227136 its reverse (631722522), we get a palindrome (856949658).

The spelling of 225227136 in words is "two hundred twenty-five million, two hundred twenty-seven thousand, one hundred thirty-six".