1116971 has 4 divisors (see below), whose sum is σ = 1135344. Its totient is φ = 1098600.

The previous prime is 1116943. The next prime is 1116977. The reversal of 1116971 is 1796111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1116971 is a prime.

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 1116971.

It is not an unprimeable number, because it can be changed into a prime (1116977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9095 + ... + 9216.

It is an arithmetic number, because the mean of its divisors is an integer number (283836).

2^1116971 is an apocalyptic number.

1116971 is a deficient number, since it is larger than the sum of its proper divisors (18373).

1116971 is an equidigital number, since it uses as much as digits as its factorization.

1116971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18372.

The product of its digits is 378, while the sum is 26.

The square root of 1116971 is about 1056.8684875612. The cubic root of 1116971 is about 103.7561780808.

It can be divided in two parts, 11 and 16971, that multiplied together give a palindrome (186681).

The spelling of 1116971 in words is "one million, one hundred sixteen thousand, nine hundred seventy-one".