12376681 has 2 divisors, whose sum is σ = 12376682. Its totient is φ = 12376680.

The previous prime is 12376673. The next prime is 12376687. The reversal of 12376681 is 18667321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9554281 + 2822400 = 3091^2 + 1680^2 .

It is an emirp because it is prime and its reverse (18667321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12376681 - 2³ = 12376673 is a prime.

It is a super-2 number, since 2×12376681² = 306364465151522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12376687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6188340 + 6188341.

It is an arithmetic number, because the mean of its divisors is an integer number (6188341).

Almost surely, 2^12376681 is an apocalyptic number.

It is an amenable number.

12376681 is a deficient number, since it is larger than the sum of its proper divisors (1).

12376681 is an equidigital number, since it uses as much as digits as its factorization.

12376681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 12376681 is about 3518.0507386904. The cubic root of 12376681 is about 231.3137232715.

The spelling of 12376681 in words is "twelve million, three hundred seventy-six thousand, six hundred eighty-one".