226543019 has 2 divisors, whose sum is σ = 226543020. Its totient is φ = 226543018.

The previous prime is 226542997. The next prime is 226543021. The reversal of 226543019 is 910345622.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 226543019 - 2⁸ = 226542763 is a prime.

It is a super-2 number, since 2×226543019² = 102643478915268722, which contains 22 as substring.

Together with 226543021, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (226540019) 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, 113271509 + 113271510.

It is an arithmetic number, because the mean of its divisors is an integer number (113271510).

Almost surely, 2^226543019 is an apocalyptic number.

226543019 is a deficient number, since it is larger than the sum of its proper divisors (1).

226543019 is an equidigital number, since it uses as much as digits as its factorization.

226543019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 226543019 is about 15051.3460859818. The cubic root of 226543019 is about 609.6073967475.

The spelling of 226543019 in words is "two hundred twenty-six million, five hundred forty-three thousand, nineteen".