1118005 has 16 divisors (see below), whose sum is σ = 1624320. Its totient is φ = 721152.

The previous prime is 1118003. The next prime is 1118009. The reversal of 1118005 is 5008111.

It is a cyclic number.

It is not a de Polignac number, because 1118005 - 2¹ = 1118003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1118005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345 + ... + 1534.

It is an arithmetic number, because the mean of its divisors is an integer number (101520).

2^1118005 is an apocalyptic number.

It is an amenable number.

1118005 is a deficient number, since it is larger than the sum of its proper divisors (506315).

1118005 is a wasteful number, since it uses less digits than its factorization.

1118005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1118005 is about 1057.3575554182. The cubic root of 1118005 is about 103.7881845221.

The spelling of 1118005 in words is "one million, one hundred eighteen thousand, five".