226818197 has 2 divisors, whose sum is σ = 226818198. Its totient is φ = 226818196.

The previous prime is 226818169. The next prime is 226818211. The reversal of 226818197 is 791818622.

226818197 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., 147233956 + 79584241 = 12134^2 + 8921^2 .

It is a cyclic number.

It is not a de Polignac number, because 226818197 - 2⁶ = 226818133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226818127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113409098 + 113409099.

It is an arithmetic number, because the mean of its divisors is an integer number (113409099).

Almost surely, 2^226818197 is an apocalyptic number.

It is an amenable number.

226818197 is a deficient number, since it is larger than the sum of its proper divisors (1).

226818197 is an equidigital number, since it uses as much as digits as its factorization.

226818197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 44.

The square root of 226818197 is about 15060.4846203567. The cubic root of 226818197 is about 609.8541234980.

The spelling of 226818197 in words is "two hundred twenty-six million, eight hundred eighteen thousand, one hundred ninety-seven".