1118573 has 4 divisors (see below), whose sum is σ = 1154688. Its totient is φ = 1082460.

The previous prime is 1118569. The next prime is 1118599. The reversal of 1118573 is 3758111.

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 1118573 - 2² = 1118569 is a prime.

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118563) 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, 18011 + ... + 18072.

It is an arithmetic number, because the mean of its divisors is an integer number (288672).

2^1118573 is an apocalyptic number.

It is an amenable number.

1118573 is a deficient number, since it is larger than the sum of its proper divisors (36115).

1118573 is an equidigital number, since it uses as much as digits as its factorization.

1118573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36114.

The product of its digits is 840, while the sum is 26.

The square root of 1118573 is about 1057.6261154113. The cubic root of 1118573 is about 103.8057580000.

The spelling of 1118573 in words is "one million, one hundred eighteen thousand, five hundred seventy-three".