1118111 has 4 divisors (see below), whose sum is σ = 1145424. Its totient is φ = 1090800.

The previous prime is 1118101. The next prime is 1118113.

It is a happy number.

1118111 is nontrivially palindromic in base 10.

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-1118111 is a prime.

1118111 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118113) 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, 13595 + ... + 13676.

It is an arithmetic number, because the mean of its divisors is an integer number (286356).

2^1118111 is an apocalyptic number.

1118111 is a deficient number, since it is larger than the sum of its proper divisors (27313).

1118111 is an equidigital number, since it uses as much as digits as its factorization.

1118111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27312.

The product of its digits is 8, while the sum is 14.

The square root of 1118111 is about 1057.4076791853. The cubic root of 1118111 is about 103.7914645313.

The spelling of 1118111 in words is "one million, one hundred eighteen thousand, one hundred eleven".