1116491 has 2 divisors, whose sum is σ = 1116492. Its totient is φ = 1116490.

The previous prime is 1116473. The next prime is 1116499. The reversal of 1116491 is 1946111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1116491 - 2¹⁰ = 1115467 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1116499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558245 + 558246.

It is an arithmetic number, because the mean of its divisors is an integer number (558246).

2^1116491 is an apocalyptic number.

1116491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1116491 is an equidigital number, since it uses as much as digits as its factorization.

1116491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 23.

The square root of 1116491 is about 1056.6413771947. The cubic root of 1116491 is about 103.7413134451.

The spelling of 1116491 in words is "one million, one hundred sixteen thousand, four hundred ninety-one".