226943291 has 2 divisors, whose sum is σ = 226943292. Its totient is φ = 226943290.

The previous prime is 226943287. The next prime is 226943317. The reversal of 226943291 is 192349622.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 226943291 - 2² = 226943287 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (226943261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113471645 + 113471646.

It is an arithmetic number, because the mean of its divisors is an integer number (113471646).

Almost surely, 2^226943291 is an apocalyptic number.

226943291 is a deficient number, since it is larger than the sum of its proper divisors (1).

226943291 is an equidigital number, since it uses as much as digits as its factorization.

226943291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 38.

The square root of 226943291 is about 15064.6371015036. The cubic root of 226943291 is about 609.9662177834.

The spelling of 226943291 in words is "two hundred twenty-six million, nine hundred forty-three thousand, two hundred ninety-one".