226294643 has 2 divisors, whose sum is σ = 226294644. Its totient is φ = 226294642.

The previous prime is 226294597. The next prime is 226294661. The reversal of 226294643 is 346492622.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226294643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 226294597 and 226294606.

It is not a weakly prime, because it can be changed into another prime (226294543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113147321 + 113147322.

It is an arithmetic number, because the mean of its divisors is an integer number (113147322).

Almost surely, 2^226294643 is an apocalyptic number.

226294643 is a deficient number, since it is larger than the sum of its proper divisors (1).

226294643 is an equidigital number, since it uses as much as digits as its factorization.

226294643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 38.

The square root of 226294643 is about 15043.0928668276. The cubic root of 226294643 is about 609.3845292676.

It can be divided in two parts, 22629 and 4643, that added together give a palindrome (27272).

The spelling of 226294643 in words is "two hundred twenty-six million, two hundred ninety-four thousand, six hundred forty-three".