226530817 has 2 divisors, whose sum is σ = 226530818. Its totient is φ = 226530816.

The previous prime is 226530739. The next prime is 226530823. The reversal of 226530817 is 718035622.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223323136 + 3207681 = 14944^2 + 1791^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226530817 is a prime.

It is a super-2 number, since 2×226530817² = 102632422101374978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (226530847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113265408 + 113265409.

It is an arithmetic number, because the mean of its divisors is an integer number (113265409).

Almost surely, 2^226530817 is an apocalyptic number.

It is an amenable number.

226530817 is a deficient number, since it is larger than the sum of its proper divisors (1).

226530817 is an equidigital number, since it uses as much as digits as its factorization.

226530817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 226530817 is about 15050.9407347182. The cubic root of 226530817 is about 609.5964517137.

The spelling of 226530817 in words is "two hundred twenty-six million, five hundred thirty thousand, eight hundred seventeen".