448188145 has 4 divisors (see below), whose sum is σ = 537825780. Its totient is φ = 358550512.

The previous prime is 448188109. The next prime is 448188151. The reversal of 448188145 is 541881844.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53450721 + 394737424 = 7311^2 + 19868^2 .

It is a cyclic number.

It is not a de Polignac number, because 448188145 - 2²⁷ = 313970417 is a prime.

It is a super-2 number, since 2×448188145² = 401745226637082050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44818810 + ... + 44818819.

It is an arithmetic number, because the mean of its divisors is an integer number (134456445).

Almost surely, 2^448188145 is an apocalyptic number.

It is an amenable number.

448188145 is a deficient number, since it is larger than the sum of its proper divisors (89637635).

448188145 is an equidigital number, since it uses as much as digits as its factorization.

448188145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89637634.

The product of its digits is 163840, while the sum is 43.

The square root of 448188145 is about 21170.4545298395. The cubic root of 448188145 is about 765.2795737238.

The spelling of 448188145 in words is "four hundred forty-eight million, one hundred eighty-eight thousand, one hundred forty-five".