224169149 has 2 divisors, whose sum is σ = 224169150. Its totient is φ = 224169148.

The previous prime is 224169137. The next prime is 224169151. The reversal of 224169149 is 941961422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179077924 + 45091225 = 13382^2 + 6715^2 .

It is a cyclic number.

It is not a de Polignac number, because 224169149 - 2⁴ = 224169133 is a prime.

Together with 224169151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224169119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112084574 + 112084575.

It is an arithmetic number, because the mean of its divisors is an integer number (112084575).

Almost surely, 2^224169149 is an apocalyptic number.

It is an amenable number.

224169149 is a deficient number, since it is larger than the sum of its proper divisors (1).

224169149 is an equidigital number, since it uses as much as digits as its factorization.

224169149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The square root of 224169149 is about 14972.2793521895. The cubic root of 224169149 is about 607.4706237665.

The spelling of 224169149 in words is "two hundred twenty-four million, one hundred sixty-nine thousand, one hundred forty-nine".