225806167 has 2 divisors, whose sum is σ = 225806168. Its totient is φ = 225806166.

The previous prime is 225806131. The next prime is 225806177. The reversal of 225806167 is 761608522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225806167 - 2¹⁵ = 225773399 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225806107) 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, 112903083 + 112903084.

It is an arithmetic number, because the mean of its divisors is an integer number (112903084).

Almost surely, 2^225806167 is an apocalyptic number.

225806167 is a deficient number, since it is larger than the sum of its proper divisors (1).

225806167 is an equidigital number, since it uses as much as digits as its factorization.

225806167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 225806167 is about 15026.8482057949. The cubic root of 225806167 is about 608.9457441623.

The spelling of 225806167 in words is "two hundred twenty-five million, eight hundred six thousand, one hundred sixty-seven".