226662431 has 2 divisors, whose sum is σ = 226662432. Its totient is φ = 226662430.

The previous prime is 226662413. The next prime is 226662433. The reversal of 226662431 is 134266622.

Together with previous prime (226662413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226662431 is a prime.

It is a super-2 number, since 2×226662431² = 102751715253659522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 226662433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226662433) 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, 113331215 + 113331216.

It is an arithmetic number, because the mean of its divisors is an integer number (113331216).

Almost surely, 2^226662431 is an apocalyptic number.

226662431 is a deficient number, since it is larger than the sum of its proper divisors (1).

226662431 is an equidigital number, since it uses as much as digits as its factorization.

226662431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 32.

The square root of 226662431 is about 15055.3123846701. The cubic root of 226662431 is about 609.7144870070.

The spelling of 226662431 in words is "two hundred twenty-six million, six hundred sixty-two thousand, four hundred thirty-one".