12418173 has 6 divisors (see below), whose sum is σ = 17937374. Its totient is φ = 8278776.

The previous prime is 12418171. The next prime is 12418181. The reversal of 12418173 is 37181421.

12418173 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12404484 + 13689 = 3522^2 + 117^2 .

It is not a de Polignac number, because 12418173 - 2¹ = 12418171 is a prime.

It is a super-2 number, since 2×12418173² = 308422041315858, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12418171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 689890 + ... + 689907.

Almost surely, 2^12418173 is an apocalyptic number.

It is an amenable number.

12418173 is a deficient number, since it is larger than the sum of its proper divisors (5519201).

12418173 is a wasteful number, since it uses less digits than its factorization.

12418173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379803 (or 1379800 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 12418173 is about 3523.9428201944. The cubic root of 12418173 is about 231.5719229120.

Adding to 12418173 its reverse (37181421), we get a palindrome (49599594).

The spelling of 12418173 in words is "twelve million, four hundred eighteen thousand, one hundred seventy-three".