448139 has 2 divisors, whose sum is σ = 448140. Its totient is φ = 448138.

The previous prime is 448121. The next prime is 448141. The reversal of 448139 is 931844.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 448139 - 2⁸ = 447883 is a prime.

Together with 448141, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 448139.

It is not a weakly prime, because it can be changed into another prime (448159) 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, 224069 + 224070.

It is an arithmetic number, because the mean of its divisors is an integer number (224070).

2⁴⁴⁸¹³⁹ is an apocalyptic number.

448139 is a deficient number, since it is larger than the sum of its proper divisors (1).

448139 is an equidigital number, since it uses as much as digits as its factorization.

448139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 29.

The square root of 448139 is about 669.4318486597. The cubic root of 448139 is about 76.5251601067.

The spelling of 448139 in words is "four hundred forty-eight thousand, one hundred thirty-nine".