12875981 has 2 divisors, whose sum is σ = 12875982. Its totient is φ = 12875980.

The previous prime is 12875969. The next prime is 12876001. The reversal of 12875981 is 18957821.

12875981 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12187081 + 688900 = 3491^2 + 830^2 .

It is a cyclic number.

It is not a de Polignac number, because 12875981 - 2⁶ = 12875917 is a prime.

It is a super-2 number, since 2×12875981² = 331581773424722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12875911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6437990 + 6437991.

It is an arithmetic number, because the mean of its divisors is an integer number (6437991).

Almost surely, 2^12875981 is an apocalyptic number.

It is an amenable number.

12875981 is a deficient number, since it is larger than the sum of its proper divisors (1).

12875981 is an equidigital number, since it uses as much as digits as its factorization.

12875981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 41.

The square root of 12875981 is about 3588.3117200154. The cubic root of 12875981 is about 234.3833599625.

The spelling of 12875981 in words is "twelve million, eight hundred seventy-five thousand, nine hundred eighty-one".