227128227 has 16 divisors (see below), whose sum is σ = 313577472. Its totient is φ = 146079360.

The previous prime is 227128217. The next prime is 227128241. The reversal of 227128227 is 722821722.

It is not a de Polignac number, because 227128227 - 2¹⁶ = 227062691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (227128217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27718 + ... + 34964.

It is an arithmetic number, because the mean of its divisors is an integer number (19598592).

Almost surely, 2^227128227 is an apocalyptic number.

227128227 is a deficient number, since it is larger than the sum of its proper divisors (86449245).

227128227 is a wasteful number, since it uses less digits than its factorization.

227128227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7618.

The product of its digits is 12544, while the sum is 33.

The square root of 227128227 is about 15070.7739350041. The cubic root of 227128227 is about 610.1318598759.

Adding to 227128227 its reverse (722821722), we get a palindrome (949949949).

The spelling of 227128227 in words is "two hundred twenty-seven million, one hundred twenty-eight thousand, two hundred twenty-seven".