1118197118 has 8 divisors (see below), whose sum is σ = 1750221648. Its totient is φ = 534789904.

The previous prime is 1118197099. The next prime is 1118197123. The reversal of 1118197118 is 8117918111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12154271 + ... + 12154362.

It is an arithmetic number, because the mean of its divisors is an integer number (218777706).

Almost surely, 2^1118197118 is an apocalyptic number.

1118197118 is a deficient number, since it is larger than the sum of its proper divisors (632024530).

1118197118 is a wasteful number, since it uses less digits than its factorization.

1118197118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24308658.

The product of its digits is 4032, while the sum is 38.

The square root of 1118197118 is about 33439.4545111011. The cubic root of 1118197118 is about 1037.9412916951.

The spelling of 1118197118 in words is "one billion, one hundred eighteen million, one hundred ninety-seven thousand, one hundred eighteen".