1115165709 has 12 divisors (see below), whose sum is σ = 1840908576. Its totient is φ = 637237512.

The previous prime is 1115165707. The next prime is 1115165729. The reversal of 1115165709 is 9075615111.

It is not a de Polignac number, because 1115165709 - 2¹ = 1115165707 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115165707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8850459 + ... + 8850584.

It is an arithmetic number, because the mean of its divisors is an integer number (153409048).

Almost surely, 2^1115165709 is an apocalyptic number.

It is an amenable number.

1115165709 is a deficient number, since it is larger than the sum of its proper divisors (725742867).

1115165709 is a wasteful number, since it uses less digits than its factorization.

1115165709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17701056 (or 17701053 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 36.

The square root of 1115165709 is about 33394.0969184675. The cubic root of 1115165709 is about 1037.0024971213.

The spelling of 1115165709 in words is "one billion, one hundred fifteen million, one hundred sixty-five thousand, seven hundred nine".