1118863 has 2 divisors, whose sum is σ = 1118864. Its totient is φ = 1118862.

The previous prime is 1118861. The next prime is 1118867. The reversal of 1118863 is 3688111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1118863 - 2¹ = 1118861 is a prime.

Together with 1118861, it forms a pair of twin primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1118861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559431 + 559432.

It is an arithmetic number, because the mean of its divisors is an integer number (559432).

2^1118863 is an apocalyptic number.

1118863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118863 is an equidigital number, since it uses as much as digits as its factorization.

1118863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 28.

The square root of 1118863 is about 1057.7632060154. The cubic root of 1118863 is about 103.8147280802.

The spelling of 1118863 in words is "one million, one hundred eighteen thousand, eight hundred sixty-three".