12941689 has 2 divisors, whose sum is σ = 12941690. Its totient is φ = 12941688.

The previous prime is 12941671. The next prime is 12941729. The reversal of 12941689 is 98614921.

It is an a-pointer prime, because the next prime (12941729) can be obtained adding 12941689 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12020089 + 921600 = 3467^2 + 960^2 .

It is a cyclic number.

It is not a de Polignac number, because 12941689 - 2⁵ = 12941657 is a prime.

It is not a weakly prime, because it can be changed into another prime (12941629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6470844 + 6470845.

It is an arithmetic number, because the mean of its divisors is an integer number (6470845).

Almost surely, 2^12941689 is an apocalyptic number.

It is an amenable number.

12941689 is a deficient number, since it is larger than the sum of its proper divisors (1).

12941689 is an equidigital number, since it uses as much as digits as its factorization.

12941689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 40.

The square root of 12941689 is about 3597.4559066096. The cubic root of 12941689 is about 234.7813811108.

The spelling of 12941689 in words is "twelve million, nine hundred forty-one thousand, six hundred eighty-nine".