1115345218 has 16 divisors (see below), whose sum is σ = 1859832576. Its totient is φ = 498168720.

The previous prime is 1115345171. The next prime is 1115345219. The reversal of 1115345218 is 8125435111.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 1115345218.

It is not an unprimeable number, because it can be changed into a prime (1115345219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691096 + ... + 692707.

It is an arithmetic number, because the mean of its divisors is an integer number (116239536).

Almost surely, 2^1115345218 is an apocalyptic number.

1115345218 is a deficient number, since it is larger than the sum of its proper divisors (744487358).

1115345218 is a wasteful number, since it uses less digits than its factorization.

1115345218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383849.

The product of its digits is 4800, while the sum is 31.

The square root of 1115345218 is about 33396.7845458212. The cubic root of 1115345218 is about 1037.0581364738.

The spelling of 1115345218 in words is "one billion, one hundred fifteen million, three hundred forty-five thousand, two hundred eighteen".