12362981 has 2 divisors, whose sum is σ = 12362982. Its totient is φ = 12362980.

The previous prime is 12362969. The next prime is 12362989. The reversal of 12362981 is 18926321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7562500 + 4800481 = 2750^2 + 2191^2 .

It is a cyclic number.

It is not a de Polignac number, because 12362981 - 2¹⁴ = 12346597 is a prime.

It is a super-2 number, since 2×12362981² = 305686598412722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12362989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6181490 + 6181491.

It is an arithmetic number, because the mean of its divisors is an integer number (6181491).

Almost surely, 2^12362981 is an apocalyptic number.

It is an amenable number.

12362981 is a deficient number, since it is larger than the sum of its proper divisors (1).

12362981 is an equidigital number, since it uses as much as digits as its factorization.

12362981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 32.

The square root of 12362981 is about 3516.1030986022. The cubic root of 12362981 is about 231.2283431387.

The spelling of 12362981 in words is "twelve million, three hundred sixty-two thousand, nine hundred eighty-one".