1115165115 has 12 divisors (see below), whose sum is σ = 1932952944. Its totient is φ = 594754704.

The previous prime is 1115165113. The next prime is 1115165131. The reversal of 1115165115 is 5115615111.

1115165115 is a `hidden beast` number, since 1 + 1 + 1 + 5 + 1 + 651 + 1 + 5 = 666.

It is not a de Polignac number, because 1115165115 - 2¹ = 1115165113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1115165113) 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, 12390679 + ... + 12390768.

It is an arithmetic number, because the mean of its divisors is an integer number (161079412).

Almost surely, 2^1115165115 is an apocalyptic number.

1115165115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1115165115 is a deficient number, since it is larger than the sum of its proper divisors (817787829).

1115165115 is a wasteful number, since it uses less digits than its factorization.

1115165115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24781458 (or 24781455 counting only the distinct ones).

The product of its digits is 750, while the sum is 27.

The square root of 1115165115 is about 33394.0880246789. The cubic root of 1115165115 is about 1037.0023129993.

The spelling of 1115165115 in words is "one billion, one hundred fifteen million, one hundred sixty-five thousand, one hundred fifteen".