1000108009 has 2 divisors, whose sum is σ = 1000108010. Its totient is φ = 1000108008.

The previous prime is 1000108003. The next prime is 1000108033. The reversal of 1000108009 is 9008010001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 676000000 + 324108009 = 26000^2 + 18003^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000108009 - 2¹⁷ = 999976937 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000108003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500054004 + 500054005.

It is an arithmetic number, because the mean of its divisors is an integer number (500054005).

Almost surely, 2^1000108009 is an apocalyptic number.

It is an amenable number.

1000108009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000108009 is an equidigital number, since it uses as much as digits as its factorization.

1000108009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1000108009 is about 31624.4843278116. The cubic root of 1000108009 is about 1000.0360017039.

The spelling of 1000108009 in words is "one billion, one hundred eight thousand, nine".