12250681 has 2 divisors, whose sum is σ = 12250682. Its totient is φ = 12250680.

The previous prime is 12250661. The next prime is 12250699. The reversal of 12250681 is 18605221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11424400 + 826281 = 3380^2 + 909^2 .

It is a cyclic number.

It is not a de Polignac number, because 12250681 - 2⁹ = 12250169 is a prime.

It is a super-2 number, since 2×12250681² = 300158369927522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12250621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6125340 + 6125341.

It is an arithmetic number, because the mean of its divisors is an integer number (6125341).

Almost surely, 2^12250681 is an apocalyptic number.

It is an amenable number.

12250681 is a deficient number, since it is larger than the sum of its proper divisors (1).

12250681 is an equidigital number, since it uses as much as digits as its factorization.

12250681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 12250681 is about 3500.0972843623. The cubic root of 12250681 is about 230.5260862341.

The spelling of 12250681 in words is "twelve million, two hundred fifty thousand, six hundred eighty-one".