1116291 has 8 divisors (see below), whose sum is σ = 1623744. Its totient is φ = 676520.

The previous prime is 1116289. The next prime is 1116301. The reversal of 1116291 is 1926111.

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 1116291 - 2¹ = 1116289 is a prime.

It is a super-2 number, since 2×1116291² = 2492211193362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1116281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16881 + ... + 16946.

It is an arithmetic number, because the mean of its divisors is an integer number (202968).

2^1116291 is an apocalyptic number.

1116291 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1116291 is a deficient number, since it is larger than the sum of its proper divisors (507453).

1116291 is a wasteful number, since it uses less digits than its factorization.

1116291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33841.

The product of its digits is 108, while the sum is 21.

The square root of 1116291 is about 1056.5467334671. The cubic root of 1116291 is about 103.7351185894.

The spelling of 1116291 in words is "one million, one hundred sixteen thousand, two hundred ninety-one".