12418361 has 4 divisors (see below), whose sum is σ = 12528372. Its totient is φ = 12308352.

The previous prime is 12418349. The next prime is 12418363. The reversal of 12418361 is 16381421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1155625 + 11262736 = 1075^2 + 3356^2 .

It is a cyclic number.

It is not a de Polignac number, because 12418361 - 2⁶ = 12418297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12418361.

It is not an unprimeable number, because it can be changed into a prime (12418363) 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, 54836 + ... + 55061.

It is an arithmetic number, because the mean of its divisors is an integer number (3132093).

Almost surely, 2^12418361 is an apocalyptic number.

It is an amenable number.

12418361 is a deficient number, since it is larger than the sum of its proper divisors (110011).

12418361 is a wasteful number, since it uses less digits than its factorization.

12418361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110010.

The product of its digits is 1152, while the sum is 26.

The square root of 12418361 is about 3523.9694947601. The cubic root of 12418361 is about 231.5730915032.

Adding to 12418361 its reverse (16381421), we get a palindrome (28799782).

The spelling of 12418361 in words is "twelve million, four hundred eighteen thousand, three hundred sixty-one".