1115216115 has 64 divisors (see below), whose sum is σ = 2035138560. Its totient is φ = 516948480.

The previous prime is 1115216107. The next prime is 1115216117. The reversal of 1115216115 is 5116125111.

It is not a de Polignac number, because 1115216115 - 2³ = 1115216107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1115216117) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 669774 + ... + 671436.

It is an arithmetic number, because the mean of its divisors is an integer number (31799040).

Almost surely, 2^1115216115 is an apocalyptic number.

1115216115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1115216115 is a deficient number, since it is larger than the sum of its proper divisors (919922445).

1115216115 is a wasteful number, since it uses less digits than its factorization.

1115216115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884.

The product of its digits is 300, while the sum is 24.

The square root of 1115216115 is about 33394.8516241651. The cubic root of 1115216115 is about 1037.0181212150.

The spelling of 1115216115 in words is "one billion, one hundred fifteen million, two hundred sixteen thousand, one hundred fifteen".