It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a nude number because it is divisible by every one of its digits.
It is an Ulam number.
21115355 is an apocalyptic number.
1115355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
1115355 is an equidigital number, since it uses as much as digits as its factorization.
1115355 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 74365.
The square root of 1115355 is about 1056.1036880913. The cubic root of 1115355 is about 103.7061168262.
The spelling of 1115355 in words is "one million, one hundred fifteen thousand, three hundred fifty-five".