1048505 has 4 divisors (see below), whose sum is σ = 1258212. Its totient is φ = 838800.

The previous prime is 1048447. The next prime is 1048507. The reversal of 1048505 is 5058401.

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 652864 + 395641 = 808^2 + 629^2 .

It is not a de Polignac number, because 1048505 - 2¹² = 1044409 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1048507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104846 + ... + 104855.

It is an arithmetic number, because the mean of its divisors is an integer number (314553).

2^1048505 is an apocalyptic number.

It is an amenable number.

1048505 is a deficient number, since it is larger than the sum of its proper divisors (209707).

1048505 is an equidigital number, since it uses as much as digits as its factorization.

1048505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209706.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1048505 is about 1023.9653314444. The cubic root of 1048505 is about 101.5913742755.

The spelling of 1048505 in words is "one million, forty-eight thousand, five hundred five".