227122813 has 2 divisors, whose sum is σ = 227122814. Its totient is φ = 227122812.

The previous prime is 227122781. The next prime is 227122837. The reversal of 227122813 is 318221722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130827844 + 96294969 = 11438^2 + 9813^2 .

It is a cyclic number.

It is not a de Polignac number, because 227122813 - 2⁵ = 227122781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227122853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113561406 + 113561407.

It is an arithmetic number, because the mean of its divisors is an integer number (113561407).

Almost surely, 2^227122813 is an apocalyptic number.

It is an amenable number.

227122813 is a deficient number, since it is larger than the sum of its proper divisors (1).

227122813 is an equidigital number, since it uses as much as digits as its factorization.

227122813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 28.

The square root of 227122813 is about 15070.5943147575. The cubic root of 227122813 is about 610.1270119827.

The spelling of 227122813 in words is "two hundred twenty-seven million, one hundred twenty-two thousand, eight hundred thirteen".