226809901 has 2 divisors, whose sum is σ = 226809902. Its totient is φ = 226809900.

The previous prime is 226809887. The next prime is 226809911. The reversal of 226809901 is 109908622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139854276 + 86955625 = 11826^2 + 9325^2 .

It is a cyclic number.

It is not a de Polignac number, because 226809901 - 2¹⁹ = 226285613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226809911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113404950 + 113404951.

It is an arithmetic number, because the mean of its divisors is an integer number (113404951).

Almost surely, 2^226809901 is an apocalyptic number.

It is an amenable number.

226809901 is a deficient number, since it is larger than the sum of its proper divisors (1).

226809901 is an equidigital number, since it uses as much as digits as its factorization.

226809901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 226809901 is about 15060.2091950942. The cubic root of 226809901 is about 609.8466881576.

The spelling of 226809901 in words is "two hundred twenty-six million, eight hundred nine thousand, nine hundred one".