1118321 has 8 divisors (see below), whose sum is σ = 1195200. Its totient is φ = 1043280.

The previous prime is 1118317. The next prime is 1118339. The reversal of 1118321 is 1238111.

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

It is a cyclic number.

It is not a de Polignac number, because 1118321 - 2² = 1118317 is a prime.

It is a super-3 number, since 3×1118321³ = 4195857163333770483, which contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1118321.

It is not an unprimeable number, because it can be changed into a prime (1118371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 935 + ... + 1763.

It is an arithmetic number, because the mean of its divisors is an integer number (149400).

2^1118321 is an apocalyptic number.

It is an amenable number.

1118321 is a deficient number, since it is larger than the sum of its proper divisors (76879).

1118321 is an equidigital number, since it uses as much as digits as its factorization.

1118321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919.

The product of its digits is 48, while the sum is 17.

The square root of 1118321 is about 1057.5069739723. The cubic root of 1118321 is about 103.7979620505.

The spelling of 1118321 in words is "one million, one hundred eighteen thousand, three hundred twenty-one".