12418937 has 2 divisors, whose sum is σ = 12418938. Its totient is φ = 12418936.

The previous prime is 12418933. The next prime is 12418961. The reversal of 12418937 is 73981421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12418576 + 361 = 3524^2 + 19^2 .

It is a cyclic number.

It is not a de Polignac number, because 12418937 - 2² = 12418933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12418897 and 12418906.

It is not a weakly prime, because it can be changed into another prime (12418933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6209468 + 6209469.

It is an arithmetic number, because the mean of its divisors is an integer number (6209469).

Almost surely, 2^12418937 is an apocalyptic number.

It is an amenable number.

12418937 is a deficient number, since it is larger than the sum of its proper divisors (1).

12418937 is an equidigital number, since it uses as much as digits as its factorization.

12418937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 12418937 is about 3524.0512198321. The cubic root of 12418937 is about 231.5766717942.

The spelling of 12418937 in words is "twelve million, four hundred eighteen thousand, nine hundred thirty-seven".