12941989 has 2 divisors, whose sum is σ = 12941990. Its totient is φ = 12941988.

The previous prime is 12941963. The next prime is 12941993. The reversal of 12941989 is 98914921.

It is a happy number.

12941989 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7022500 + 5919489 = 2650^2 + 2433^2 .

It is a cyclic number.

It is not a de Polignac number, because 12941989 - 2²¹ = 10844837 is a prime.

It is a super-2 number, since 2×12941989² = 334990158552242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12941909) 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, 6470994 + 6470995.

It is an arithmetic number, because the mean of its divisors is an integer number (6470995).

Almost surely, 2^12941989 is an apocalyptic number.

It is an amenable number.

12941989 is a deficient number, since it is larger than the sum of its proper divisors (1).

12941989 is an equidigital number, since it uses as much as digits as its factorization.

12941989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 43.

The square root of 12941989 is about 3597.4976025009. The cubic root of 12941989 is about 234.7831952447.

The spelling of 12941989 in words is "twelve million, nine hundred forty-one thousand, nine hundred eighty-nine".