1116217 has 4 divisors (see below), whose sum is σ = 1152256. Its totient is φ = 1080180.

The previous prime is 1116209. The next prime is 1116223. The reversal of 1116217 is 7126111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7126111 = 17 ⋅419183.

It is a cyclic number.

It is not a de Polignac number, because 1116217 - 2³ = 1116209 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1116194 and 1116203.

It is not an unprimeable number, because it can be changed into a prime (1116257) 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 3 ways as a sum of consecutive naturals, for example, 17973 + ... + 18034.

It is an arithmetic number, because the mean of its divisors is an integer number (288064).

2^1116217 is an apocalyptic number.

It is an amenable number.

1116217 is a deficient number, since it is larger than the sum of its proper divisors (36039).

1116217 is an equidigital number, since it uses as much as digits as its factorization.

1116217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36038.

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

The square root of 1116217 is about 1056.5117131390. The cubic root of 1116217 is about 103.7328263053.

It can be divided in two parts, 111621 and 7, that added together give a triangular number (111628 = T₄₇₂).

The spelling of 1116217 in words is "one million, one hundred sixteen thousand, two hundred seventeen".