448509163 has 4 divisors (see below), whose sum is σ = 448608888. Its totient is φ = 448409440.

The previous prime is 448509133. The next prime is 448509197. The reversal of 448509163 is 361905844.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 448509163 - 2²⁵ = 414954731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448509133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42781 + ... + 52222.

It is an arithmetic number, because the mean of its divisors is an integer number (112152222).

Almost surely, 2^448509163 is an apocalyptic number.

448509163 is a deficient number, since it is larger than the sum of its proper divisors (99725).

448509163 is an equidigital number, since it uses as much as digits as its factorization.

448509163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99724.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 448509163 is about 21178.0349182827. The cubic root of 448509163 is about 765.4622424611.

The spelling of 448509163 in words is "four hundred forty-eight million, five hundred nine thousand, one hundred sixty-three".