12618757 has 2 divisors, whose sum is σ = 12618758. Its totient is φ = 12618756.

The previous prime is 12618751. The next prime is 12618763. The reversal of 12618757 is 75781621.

It is a balanced prime because it is at equal distance from previous prime (12618751) and next prime (12618763).

It can be written as a sum of positive squares in only one way, i.e., 7392961 + 5225796 = 2719^2 + 2286^2 .

It is an emirp because it is prime and its reverse (75781621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12618757 - 2⁷ = 12618629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12618751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6309378 + 6309379.

It is an arithmetic number, because the mean of its divisors is an integer number (6309379).

Almost surely, 2^12618757 is an apocalyptic number.

It is an amenable number.

12618757 is a deficient number, since it is larger than the sum of its proper divisors (1).

12618757 is an equidigital number, since it uses as much as digits as its factorization.

12618757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23520, while the sum is 37.

The square root of 12618757 is about 3552.2889803618. The cubic root of 12618757 is about 232.8120879262.

The spelling of 12618757 in words is "twelve million, six hundred eighteen thousand, seven hundred fifty-seven".