1008008065 has 8 divisors (see below), whose sum is σ = 1209784680. Its totient is φ = 806289792.

The previous prime is 1008008063. The next prime is 1008008101. The reversal of 1008008065 is 5608008001.

It is a happy number.

1008008065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 218566656 + 789441409 = 14784^2 + 28097^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1008008065 - 2¹ = 1008008063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1008008063) 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, 47331 + ... + 65239.

It is an arithmetic number, because the mean of its divisors is an integer number (151223085).

Almost surely, 2^1008008065 is an apocalyptic number.

It is an amenable number.

1008008065 is a deficient number, since it is larger than the sum of its proper divisors (201776615).

1008008065 is a wasteful number, since it uses less digits than its factorization.

1008008065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29171.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 1008008065 is about 31749.1427443325. The cubic root of 1008008065 is about 1002.6622610763.

The spelling of 1008008065 in words is "one billion, eight million, eight thousand, sixty-five".