226819 has 2 divisors, whose sum is σ = 226820. Its totient is φ = 226818.

The previous prime is 226817. The next prime is 226823. The reversal of 226819 is 918622.

It is a happy number.

226819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 226819 - 2¹ = 226817 is a prime.

It is a super-2 number, since 2×226819² = 102893717522, which contains 22 as substring.

Together with 226817, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (226813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113409 + 113410.

It is an arithmetic number, because the mean of its divisors is an integer number (113410).

2²²⁶⁸¹⁹ is an apocalyptic number.

226819 is a deficient number, since it is larger than the sum of its proper divisors (1).

226819 is an equidigital number, since it uses as much as digits as its factorization.

226819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 28.

The square root of 226819 is about 476.2551836988. The cubic root of 226819 is about 60.9854843182.

The spelling of 226819 in words is "two hundred twenty-six thousand, eight hundred nineteen".