226649 has 2 divisors, whose sum is σ = 226650. Its totient is φ = 226648.

The previous prime is 226643. The next prime is 226657. The reversal of 226649 is 946622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225625 + 1024 = 475^2 + 32^2 .

It is a cyclic number.

It is not a de Polignac number, because 226649 - 2¹² = 222553 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 2¹⁷ + 6⁶ + 6⁶ + 4⁵ + 9³ .

It is not a weakly prime, because it can be changed into another prime (226643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113324 + 113325.

It is an arithmetic number, because the mean of its divisors is an integer number (113325).

2²²⁶⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

226649 is a deficient number, since it is larger than the sum of its proper divisors (1).

226649 is an equidigital number, since it uses as much as digits as its factorization.

226649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 226649 is about 476.0766744969. The cubic root of 226649 is about 60.9702443786.

The spelling of 226649 in words is "two hundred twenty-six thousand, six hundred forty-nine".