226043231 has 2 divisors, whose sum is σ = 226043232. Its totient is φ = 226043230.

The previous prime is 226043189. The next prime is 226043239. The reversal of 226043231 is 132340622.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226043231 is a prime.

It is a super-2 number, since 2×226043231² = 102191084561838722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 226043197 and 226043206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226043239) 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, 113021615 + 113021616.

It is an arithmetic number, because the mean of its divisors is an integer number (113021616).

Almost surely, 2^226043231 is an apocalyptic number.

226043231 is a deficient number, since it is larger than the sum of its proper divisors (1).

226043231 is an equidigital number, since it uses as much as digits as its factorization.

226043231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 226043231 is about 15034.7341512911. The cubic root of 226043231 is about 609.1587714481.

Adding to 226043231 its reverse (132340622), we get a palindrome (358383853).

The spelling of 226043231 in words is "two hundred twenty-six million, forty-three thousand, two hundred thirty-one".