1002115709 has 12 divisors (see below), whose sum is σ = 1167609888. Its totient is φ = 857568600.

The previous prime is 1002115693. The next prime is 1002115721. The reversal of 1002115709 is 9075112001.

It is not a de Polignac number, because 1002115709 - 2⁴ = 1002115693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002115729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14714 + ... + 47124.

It is an arithmetic number, because the mean of its divisors is an integer number (97300824).

Almost surely, 2^1002115709 is an apocalyptic number.

It is an amenable number.

1002115709 is a deficient number, since it is larger than the sum of its proper divisors (165494179).

1002115709 is an equidigital number, since it uses as much as digits as its factorization.

1002115709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33056 (or 33049 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 1002115709 is about 31656.2112230760. The cubic root of 1002115709 is about 1000.7047395588.

The spelling of 1002115709 in words is "one billion, two million, one hundred fifteen thousand, seven hundred nine".