227728133 has 2 divisors, whose sum is σ = 227728134. Its totient is φ = 227728132.

The previous prime is 227728103. The next prime is 227728147. The reversal of 227728133 is 331827722.

It is a happy number.

227728133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223263364 + 4464769 = 14942^2 + 2113^2 .

It is a cyclic number.

It is not a de Polignac number, because 227728133 - 2⁶ = 227728069 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 227728093 and 227728102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227728103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113864066 + 113864067.

It is an arithmetic number, because the mean of its divisors is an integer number (113864067).

Almost surely, 2^227728133 is an apocalyptic number.

It is an amenable number.

227728133 is a deficient number, since it is larger than the sum of its proper divisors (1).

227728133 is an equidigital number, since it uses as much as digits as its factorization.

227728133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28224, while the sum is 35.

The square root of 227728133 is about 15090.6637693642. The cubic root of 227728133 is about 610.6685610847.

The spelling of 227728133 in words is "two hundred twenty-seven million, seven hundred twenty-eight thousand, one hundred thirty-three".