1000015009 has 12 divisors (see below), whose sum is σ = 1170086016. Its totient is φ = 837211032.

The previous prime is 1000014997. The next prime is 1000015031. The reversal of 1000015009 is 9005100001.

It is not a de Polignac number, because 1000015009 - 2⁷ = 1000014881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000014983 and 1000015001.

It is not an unprimeable number, because it can be changed into a prime (1000015069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25689 + ... + 51574.

It is an arithmetic number, because the mean of its divisors is an integer number (97507168).

Almost surely, 2^1000015009 is an apocalyptic number.

It is an amenable number.

1000015009 is a deficient number, since it is larger than the sum of its proper divisors (170071007).

1000015009 is an frugal number, since it uses more digits than its factorization.

1000015009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77356 (or 77313 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 16.

The square root of 1000015009 is about 31623.0139139203. The cubic root of 1000015009 is about 1000.0050029750.

The spelling of 1000015009 in words is "one billion, fifteen thousand, nine".