449165 has 4 divisors (see below), whose sum is σ = 539004. Its totient is φ = 359328.

The previous prime is 449161. The next prime is 449171. The reversal of 449165 is 561944.

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 243049 + 206116 = 493^2 + 454^2 .

It is a cyclic number.

It is not a de Polignac number, because 449165 - 2² = 449161 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449161) 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 in 3 ways as a sum of consecutive naturals, for example, 44912 + ... + 44921.

It is an arithmetic number, because the mean of its divisors is an integer number (134751).

2⁴⁴⁹¹⁶⁵ is an apocalyptic number.

It is an amenable number.

449165 is a deficient number, since it is larger than the sum of its proper divisors (89839).

449165 is an equidigital number, since it uses as much as digits as its factorization.

449165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89838.

The product of its digits is 4320, while the sum is 29.

The square root of 449165 is about 670.1977320165. The cubic root of 449165 is about 76.5835162353.

The spelling of 449165 in words is "four hundred forty-nine thousand, one hundred sixty-five".