1115787912 has 16 divisors (see below), whose sum is σ = 2789469840. Its totient is φ = 371929296.

The previous prime is 1115787857. The next prime is 1115787919. The reversal of 1115787912 is 2197875111.

It is not an unprimeable number, because it can be changed into a prime (1115787919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23245558 + ... + 23245605.

It is an arithmetic number, because the mean of its divisors is an integer number (174341865).

Almost surely, 2^1115787912 is an apocalyptic number.

1115787912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1115787912 is an abundant number, since it is smaller than the sum of its proper divisors (1673681928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1115787912 is a wasteful number, since it uses less digits than its factorization.

1115787912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46491172 (or 46491168 counting only the distinct ones).

The product of its digits is 35280, while the sum is 42.

The square root of 1115787912 is about 33403.4116820423. The cubic root of 1115787912 is about 1037.1953252951.

The spelling of 1115787912 in words is "one billion, one hundred fifteen million, seven hundred eighty-seven thousand, nine hundred twelve".