225242167 has 2 divisors, whose sum is σ = 225242168. Its totient is φ = 225242166.

The previous prime is 225242153. The next prime is 225242239. The reversal of 225242167 is 761242522.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225242167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225242107) 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, 112621083 + 112621084.

It is an arithmetic number, because the mean of its divisors is an integer number (112621084).

Almost surely, 2^225242167 is an apocalyptic number.

225242167 is a deficient number, since it is larger than the sum of its proper divisors (1).

225242167 is an equidigital number, since it uses as much as digits as its factorization.

225242167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 31.

The square root of 225242167 is about 15008.0700624697. The cubic root of 225242167 is about 608.4383300013.

Adding to 225242167 its reverse (761242522), we get a palindrome (986484689).

The spelling of 225242167 in words is "two hundred twenty-five million, two hundred forty-two thousand, one hundred sixty-seven".