226259989 has 2 divisors, whose sum is σ = 226259990. Its totient is φ = 226259988.

The previous prime is 226259977. The next prime is 226260007. The reversal of 226259989 is 989952622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212197489 + 14062500 = 14567^2 + 3750^2 .

It is a cyclic number.

It is not a de Polignac number, because 226259989 - 2¹³ = 226251797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226259959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113129994 + 113129995.

It is an arithmetic number, because the mean of its divisors is an integer number (113129995).

Almost surely, 2^226259989 is an apocalyptic number.

It is an amenable number.

226259989 is a deficient number, since it is larger than the sum of its proper divisors (1).

226259989 is an equidigital number, since it uses as much as digits as its factorization.

226259989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 52.

The square root of 226259989 is about 15041.9409984217. The cubic root of 226259989 is about 609.3534213143.

The spelling of 226259989 in words is "two hundred twenty-six million, two hundred fifty-nine thousand, nine hundred eighty-nine".