12618841 has 2 divisors, whose sum is σ = 12618842. Its totient is φ = 12618840.

The previous prime is 12618817. The next prime is 12618863. The reversal of 12618841 is 14881621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11560000 + 1058841 = 3400^2 + 1029^2 .

It is a cyclic number.

It is not a de Polignac number, because 12618841 - 2¹³ = 12610649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12618871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6309420 + 6309421.

It is an arithmetic number, because the mean of its divisors is an integer number (6309421).

Almost surely, 2^12618841 is an apocalyptic number.

It is an amenable number.

12618841 is a deficient number, since it is larger than the sum of its proper divisors (1).

12618841 is an equidigital number, since it uses as much as digits as its factorization.

12618841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 31.

The square root of 12618841 is about 3552.3008037046. The cubic root of 12618841 is about 232.8126045163.

The spelling of 12618841 in words is "twelve million, six hundred eighteen thousand, eight hundred forty-one".