12489941 has 2 divisors, whose sum is σ = 12489942. Its totient is φ = 12489940.

The previous prime is 12489929. The next prime is 12489959. The reversal of 12489941 is 14998421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12453841 + 36100 = 3529^2 + 190^2 .

It is an emirp because it is prime and its reverse (14998421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12489941 - 2⁶ = 12489877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12489895 and 12489904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12489991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6244970 + 6244971.

It is an arithmetic number, because the mean of its divisors is an integer number (6244971).

Almost surely, 2^12489941 is an apocalyptic number.

It is an amenable number.

12489941 is a deficient number, since it is larger than the sum of its proper divisors (1).

12489941 is an equidigital number, since it uses as much as digits as its factorization.

12489941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 38.

The square root of 12489941 is about 3534.1110622050. Note that the first 3 decimals coincide. The cubic root of 12489941 is about 232.0171719850.

The spelling of 12489941 in words is "twelve million, four hundred eighty-nine thousand, nine hundred forty-one".