225167149 has 2 divisors, whose sum is σ = 225167150. Its totient is φ = 225167148.

The previous prime is 225167141. The next prime is 225167197. The reversal of 225167149 is 941761522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212868100 + 12299049 = 14590^2 + 3507^2 .

It is a cyclic number.

It is not a de Polignac number, because 225167149 - 2³ = 225167141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225167141) 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, 112583574 + 112583575.

It is an arithmetic number, because the mean of its divisors is an integer number (112583575).

Almost surely, 2^225167149 is an apocalyptic number.

It is an amenable number.

225167149 is a deficient number, since it is larger than the sum of its proper divisors (1).

225167149 is an equidigital number, since it uses as much as digits as its factorization.

225167149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The square root of 225167149 is about 15005.5705989476. The cubic root of 225167149 is about 608.3707747185.

The spelling of 225167149 in words is "two hundred twenty-five million, one hundred sixty-seven thousand, one hundred forty-nine".