1000000005 has 8 divisors (see below), whose sum is σ = 1600000032. Its totient is φ = 533333328.

The previous prime is 999999937. The next prime is 1000000007. The reversal of 1000000005 is 5000000001.

1000000005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1000000005 - 2¹⁰ = 999998981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000000007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33333319 + ... + 33333348.

It is an arithmetic number, because the mean of its divisors is an integer number (200000004).

Almost surely, 2^1000000005 is an apocalyptic number.

1000000005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1000000005 is a deficient number, since it is larger than the sum of its proper divisors (600000027).

1000000005 is an equidigital number, since it uses as much as digits as its factorization.

1000000005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66666675.

The product of its (nonzero) digits is 5, while the sum is 6.

The square root of 1000000005 is about 31622.7766807407. The cubic root of 1000000005 is about 1000.0000016667. Note that the first 5 decimals are identical.

Adding to 1000000005 its reverse (5000000001), we get a palindrome (6000000006).

The spelling of 1000000005 in words is "one billion, five", and thus it is an aban number and an uban number.