448136257 has 2 divisors, whose sum is σ = 448136258. Its totient is φ = 448136256.

The previous prime is 448136237. The next prime is 448136263. The reversal of 448136257 is 752631844.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439279681 + 8856576 = 20959^2 + 2976^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448136257 is a prime.

It is a super-2 number, since 2×448136257² = 401652209675940098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (448136237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224068128 + 224068129.

It is an arithmetic number, because the mean of its divisors is an integer number (224068129).

Almost surely, 2^448136257 is an apocalyptic number.

It is an amenable number.

448136257 is a deficient number, since it is larger than the sum of its proper divisors (1).

448136257 is an equidigital number, since it uses as much as digits as its factorization.

448136257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 40.

The square root of 448136257 is about 21169.2290128857. The cubic root of 448136257 is about 765.2500397290.

The spelling of 448136257 in words is "four hundred forty-eight million, one hundred thirty-six thousand, two hundred fifty-seven".