226651331 has 2 divisors, whose sum is σ = 226651332. Its totient is φ = 226651330.

The previous prime is 226651319. The next prime is 226651333. The reversal of 226651331 is 133156622.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226651331 is a prime.

It is a super-2 number, since 2×226651331² = 102741651688143122, which contains 22 as substring.

Together with 226651333, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_12468611 and since 226651331 and 12468611 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 226651294 and 226651303.

It is not a weakly prime, because it can be changed into another prime (226651333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113325665 + 113325666.

It is an arithmetic number, because the mean of its divisors is an integer number (113325666).

Almost surely, 2^226651331 is an apocalyptic number.

226651331 is a deficient number, since it is larger than the sum of its proper divisors (1).

226651331 is an equidigital number, since it uses as much as digits as its factorization.

226651331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 29.

The square root of 226651331 is about 15054.9437395163. The cubic root of 226651331 is about 609.7045339662.

The spelling of 226651331 in words is "two hundred twenty-six million, six hundred fifty-one thousand, three hundred thirty-one".