226340251 has 2 divisors, whose sum is σ = 226340252. Its totient is φ = 226340250.

The previous prime is 226340249. The next prime is 226340267. The reversal of 226340251 is 152043622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 226340251 - 2¹ = 226340249 is a prime.

Together with 226340249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (226340651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113170125 + 113170126.

It is an arithmetic number, because the mean of its divisors is an integer number (113170126).

Almost surely, 2^226340251 is an apocalyptic number.

226340251 is a deficient number, since it is larger than the sum of its proper divisors (1).

226340251 is an equidigital number, since it uses as much as digits as its factorization.

226340251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 226340251 is about 15044.6087021232. The cubic root of 226340251 is about 609.4254654888.

Adding to 226340251 its reverse (152043622), we get a palindrome (378383873).

The spelling of 226340251 in words is "two hundred twenty-six million, three hundred forty thousand, two hundred fifty-one".