227813081 has 2 divisors, whose sum is σ = 227813082. Its totient is φ = 227813080.

The previous prime is 227813063. The next prime is 227813087. The reversal of 227813081 is 180318722.

227813081 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., 223233481 + 4579600 = 14941^2 + 2140^2 .

It is a cyclic number.

It is not a de Polignac number, because 227813081 - 2²² = 223618777 is a prime.

It is a super-2 number, since 2×227813081² = 103797599749425122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (227813087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113906540 + 113906541.

It is an arithmetic number, because the mean of its divisors is an integer number (113906541).

Almost surely, 2^227813081 is an apocalyptic number.

It is an amenable number.

227813081 is a deficient number, since it is larger than the sum of its proper divisors (1).

227813081 is an equidigital number, since it uses as much as digits as its factorization.

227813081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 227813081 is about 15093.4780948594. The cubic root of 227813081 is about 610.7444829356.

The spelling of 227813081 in words is "two hundred twenty-seven million, eight hundred thirteen thousand, eighty-one".