448131 has 4 divisors (see below), whose sum is σ = 597512. Its totient is φ = 298752.

The previous prime is 448121. The next prime is 448139. The reversal of 448131 is 131844.

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

It is not a de Polignac number, because 448131 - 2⁶ = 448067 is a prime.

It is a super-2 number, since 2×448131² = 401642786322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 448098 and 448107.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 448131.

It is not an unprimeable number, because it can be changed into a prime (448139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74686 + ... + 74691.

It is an arithmetic number, because the mean of its divisors is an integer number (149378).

2⁴⁴⁸¹³¹ is an apocalyptic number.

448131 is a deficient number, since it is larger than the sum of its proper divisors (149381).

448131 is a wasteful number, since it uses less digits than its factorization.

448131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149380.

The product of its digits is 384, while the sum is 21.

The square root of 448131 is about 669.4258734169. The cubic root of 448131 is about 76.5247047384.

Adding to 448131 its reverse (131844), we get a palindrome (579975).

The spelling of 448131 in words is "four hundred forty-eight thousand, one hundred thirty-one".