226421149 has 2 divisors, whose sum is σ = 226421150. Its totient is φ = 226421148.

The previous prime is 226421087. The next prime is 226421219. The reversal of 226421149 is 941124622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222218649 + 4202500 = 14907^2 + 2050^2 .

It is a cyclic number.

It is not a de Polignac number, because 226421149 - 2⁷ = 226421021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 226421149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226422149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113210574 + 113210575.

It is an arithmetic number, because the mean of its divisors is an integer number (113210575).

Almost surely, 2^226421149 is an apocalyptic number.

It is an amenable number.

226421149 is a deficient number, since it is larger than the sum of its proper divisors (1).

226421149 is an equidigital number, since it uses as much as digits as its factorization.

226421149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 226421149 is about 15047.2970662508. The cubic root of 226421149 is about 609.4980633122.

The spelling of 226421149 in words is "two hundred twenty-six million, four hundred twenty-one thousand, one hundred forty-nine".