1117216 has 12 divisors (see below), whose sum is σ = 2199582. Its totient is φ = 558592.

The previous prime is 1117199. The next prime is 1117243. The reversal of 1117216 is 6127111.

It can be written as a sum of positive squares in only one way, i.e., 960400 + 156816 = 980^2 + 396^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1117193 and 1117202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17425 + ... + 17488.

2^1117216 is an apocalyptic number.

1117216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1117216 is a deficient number, since it is larger than the sum of its proper divisors (1082366).

1117216 is an equidigital number, since it uses as much as digits as its factorization.

1117216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34923 (or 34915 counting only the distinct ones).

The product of its digits is 84, while the sum is 19.

The square root of 1117216 is about 1056.9843896671. The cubic root of 1117216 is about 103.7637635972.

The spelling of 1117216 in words is "one million, one hundred seventeen thousand, two hundred sixteen".