448120181 has 2 divisors, whose sum is σ = 448120182. Its totient is φ = 448120180.

The previous prime is 448120171. The next prime is 448120193. The reversal of 448120181 is 181021844.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 402002500 + 46117681 = 20050^2 + 6791^2 .

It is a cyclic number.

It is not a de Polignac number, because 448120181 - 2⁶ = 448120117 is a prime.

It is a super-2 number, since 2×448120181² = 401623393238945522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (448120171) 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, 224060090 + 224060091.

It is an arithmetic number, because the mean of its divisors is an integer number (224060091).

Almost surely, 2^448120181 is an apocalyptic number.

It is an amenable number.

448120181 is a deficient number, since it is larger than the sum of its proper divisors (1).

448120181 is an equidigital number, since it uses as much as digits as its factorization.

448120181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 448120181 is about 21168.8493074139. The cubic root of 448120181 is about 765.2408890101.

The spelling of 448120181 in words is "four hundred forty-eight million, one hundred twenty thousand, one hundred eighty-one".