1118173 has 4 divisors (see below), whose sum is σ = 1277920. Its totient is φ = 958428.

The previous prime is 1118149. The next prime is 1118189. The reversal of 1118173 is 3718111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1118173 - 2⁹ = 1117661 is a prime.

1118173 is a lucky 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, 79863 + ... + 79876.

It is an arithmetic number, because the mean of its divisors is an integer number (319480).

2^1118173 is an apocalyptic number.

It is an amenable number.

1118173 is a deficient number, since it is larger than the sum of its proper divisors (159747).

1118173 is an equidigital number, since it uses as much as digits as its factorization.

1118173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159746.

The product of its digits is 168, while the sum is 22.

The square root of 1118173 is about 1057.4369957591. The cubic root of 1118173 is about 103.7933829311.

The spelling of 1118173 in words is "one million, one hundred eighteen thousand, one hundred seventy-three".