1182231218 has 16 divisors (see below), whose sum is σ = 2032497600. Its totient is φ = 505216656.

The previous prime is 1182231217. The next prime is 1182231223. The reversal of 1182231218 is 8121322811.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1182231217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116096 + ... + 125867.

It is an arithmetic number, because the mean of its divisors is an integer number (127031100).

Almost surely, 2^1182231218 is an apocalyptic number.

1182231218 is a deficient number, since it is larger than the sum of its proper divisors (850266382).

1182231218 is a wasteful number, since it uses less digits than its factorization.

1182231218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242321.

The product of its digits is 1536, while the sum is 29.

The square root of 1182231218 is about 34383.5893705122. The cubic root of 1182231218 is about 1057.3874245227.

The spelling of 1182231218 in words is "one billion, one hundred eighty-two million, two hundred thirty-one thousand, two hundred eighteen".