225204167 has 2 divisors, whose sum is σ = 225204168. Its totient is φ = 225204166.

The previous prime is 225204127. The next prime is 225204179. The reversal of 225204167 is 761402522.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225204167 - 2¹⁸ = 224942023 is a prime.

It is equal to p_12393461 and since 225204167 and 12393461 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225204127) 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, 112602083 + 112602084.

It is an arithmetic number, because the mean of its divisors is an integer number (112602084).

Almost surely, 2^225204167 is an apocalyptic number.

225204167 is a deficient number, since it is larger than the sum of its proper divisors (1).

225204167 is an equidigital number, since it uses as much as digits as its factorization.

225204167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 225204167 is about 15006.8040235088. The cubic root of 225204167 is about 608.4041120791.

Adding to 225204167 its reverse (761402522), we get a palindrome (986606689).

The spelling of 225204167 in words is "two hundred twenty-five million, two hundred four thousand, one hundred sixty-seven".