1163218 has 16 divisors (see below), whose sum is σ = 2099520. Its totient is φ = 472176.

The previous prime is 1163207. The next prime is 1163221. The reversal of 1163218 is 8123611.

It is a super-2 number, since 2×1163218² = 2706152231048, which contains 22 as substring.

It is an unprimeable number.

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, 1921 + ... + 2452.

It is an arithmetic number, because the mean of its divisors is an integer number (131220).

2^1163218 is an apocalyptic number.

1163218 is a deficient number, since it is larger than the sum of its proper divisors (936302).

1163218 is a wasteful number, since it uses less digits than its factorization.

1163218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401.

The product of its digits is 288, while the sum is 22.

The square root of 1163218 is about 1078.5258457728. The cubic root of 1163218 is about 105.1688289245.

Adding to 1163218 its reverse (8123611), we get a palindrome (9286829).

The spelling of 1163218 in words is "one million, one hundred sixty-three thousand, two hundred eighteen".