226012643 has 2 divisors, whose sum is σ = 226012644. Its totient is φ = 226012642.

The previous prime is 226012639. The next prime is 226012669. The reversal of 226012643 is 346210622.

It is an a-pointer prime, because the next prime (226012669) can be obtained adding 226012643 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 226012643 - 2² = 226012639 is a prime.

It is not a weakly prime, because it can be changed into another prime (226012693) by changing a digit.

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 as a sum of consecutive naturals, namely, 113006321 + 113006322.

It is an arithmetic number, because the mean of its divisors is an integer number (113006322).

Almost surely, 2^226012643 is an apocalyptic number.

226012643 is a deficient number, since it is larger than the sum of its proper divisors (1).

226012643 is an equidigital number, since it uses as much as digits as its factorization.

226012643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 226012643 is about 15033.7168724171. The cubic root of 226012643 is about 609.1312932397.

The spelling of 226012643 in words is "two hundred twenty-six million, twelve thousand, six hundred forty-three".