12118573 has 4 divisors (see below), whose sum is σ = 12446140. Its totient is φ = 11791008.

The previous prime is 12118567. The next prime is 12118591. The reversal of 12118573 is 37581121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37581121 = 3637 ⋅10333.

It can be written as a sum of positive squares in 2 ways, for example, as 9753129 + 2365444 = 3123^2 + 1538^2 .

It is a cyclic number.

It is not a de Polignac number, because 12118573 - 2¹³ = 12110381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12118543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163728 + ... + 163801.

It is an arithmetic number, because the mean of its divisors is an integer number (3111535).

Almost surely, 2^12118573 is an apocalyptic number.

It is an amenable number.

12118573 is a deficient number, since it is larger than the sum of its proper divisors (327567).

12118573 is an equidigital number, since it uses as much as digits as its factorization.

12118573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327566.

The product of its digits is 1680, while the sum is 28.

The square root of 12118573 is about 3481.1740835528. The cubic root of 12118573 is about 229.6944461749.

Adding to 12118573 its reverse (37581121), we get a palindrome (49699694).

The spelling of 12118573 in words is "twelve million, one hundred eighteen thousand, five hundred seventy-three".