227513216 has 64 divisors (see below), whose sum is σ = 534773760. Its totient is φ = 94348800.

The previous prime is 227513191. The next prime is 227513219. The reversal of 227513216 is 612315722.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227513219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23681 + ... + 31871.

It is an arithmetic number, because the mean of its divisors is an integer number (8355840).

Almost surely, 2^227513216 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 227513216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267386880).

227513216 is an abundant number, since it is smaller than the sum of its proper divisors (307260544).

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

227513216 is an equidigital number, since it uses as much as digits as its factorization.

227513216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8243 (or 8231 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 227513216 is about 15083.5412287699. The cubic root of 227513216 is about 610.4763957431.

Adding to 227513216 its reverse (612315722), we get a palindrome (839828938).

The spelling of 227513216 in words is "two hundred twenty-seven million, five hundred thirteen thousand, two hundred sixteen".