225267149 has 2 divisors, whose sum is σ = 225267150. Its totient is φ = 225267148.

The previous prime is 225267121. The next prime is 225267179. The reversal of 225267149 is 941762522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122102500 + 103164649 = 11050^2 + 10157^2 .

It is a cyclic number.

It is not a de Polignac number, because 225267149 - 2⁸ = 225266893 is a prime.

It is a Chen prime.

It is equal to p_12396683 and since 225267149 and 12396683 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 (225267179) 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, 112633574 + 112633575.

It is an arithmetic number, because the mean of its divisors is an integer number (112633575).

Almost surely, 2^225267149 is an apocalyptic number.

It is an amenable number.

225267149 is a deficient number, since it is larger than the sum of its proper divisors (1).

225267149 is an equidigital number, since it uses as much as digits as its factorization.

225267149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 38.

The square root of 225267149 is about 15008.9023249537. The cubic root of 225267149 is about 608.4608234871.

The spelling of 225267149 in words is "two hundred twenty-five million, two hundred sixty-seven thousand, one hundred forty-nine".