226806919 has 2 divisors, whose sum is σ = 226806920. Its totient is φ = 226806918.

The previous prime is 226806893. The next prime is 226806991. The reversal of 226806919 is 919608622.

Together with next prime (226806991) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 226806919 - 2¹⁷ = 226675847 is a prime.

It is a super-2 number, since 2×226806919² = 102882757012545122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226206919) 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, 113403459 + 113403460.

It is an arithmetic number, because the mean of its divisors is an integer number (113403460).

Almost surely, 2^226806919 is an apocalyptic number.

226806919 is a deficient number, since it is larger than the sum of its proper divisors (1).

226806919 is an equidigital number, since it uses as much as digits as its factorization.

226806919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 226806919 is about 15060.1101921599. The cubic root of 226806919 is about 609.8440154777.

The spelling of 226806919 in words is "two hundred twenty-six million, eight hundred six thousand, nine hundred nineteen".