1005000005 has 8 divisors (see below), whose sum is σ = 1244903424. Its totient is φ = 778064400.

The previous prime is 1004999987. The next prime is 1005000047. The reversal of 1005000005 is 5000005001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1005000005 - 2¹⁴ = 1004983621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1005000005.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3241781 + ... + 3242090.

It is an arithmetic number, because the mean of its divisors is an integer number (155612928).

Almost surely, 2^1005000005 is an apocalyptic number.

It is an amenable number.

1005000005 is a deficient number, since it is larger than the sum of its proper divisors (239903419).

1005000005 is an equidigital number, since it uses as much as digits as its factorization.

1005000005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6483907.

The product of its (nonzero) digits is 25, while the sum is 11.

The square root of 1005000005 is about 31701.7350471548. The cubic root of 1005000005 is about 1001.6638982404.

Adding to 1005000005 its reverse (5000005001), we get a palindrome (6005005006).

The spelling of 1005000005 in words is "one billion, five million, five", and thus it is an aban number and an uban number.