226431605 has 4 divisors (see below), whose sum is σ = 271717932. Its totient is φ = 181145280.

The previous prime is 226431589. The next prime is 226431629. The reversal of 226431605 is 506134622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148303684 + 78127921 = 12178^2 + 8839^2 .

It is not a de Polignac number, because 226431605 - 2⁴ = 226431589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22643156 + ... + 22643165.

It is an arithmetic number, because the mean of its divisors is an integer number (67929483).

Almost surely, 2^226431605 is an apocalyptic number.

It is an amenable number.

226431605 is a deficient number, since it is larger than the sum of its proper divisors (45286327).

226431605 is an equidigital number, since it uses as much as digits as its factorization.

226431605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45286326.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 226431605 is about 15047.6445000538. The cubic root of 226431605 is about 609.5074452592.

The spelling of 226431605 in words is "two hundred twenty-six million, four hundred thirty-one thousand, six hundred five".