12401489 has 2 divisors, whose sum is σ = 12401490. Its totient is φ = 12401488.

The previous prime is 12401447. The next prime is 12401491. The reversal of 12401489 is 98410421.

12401489 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., 10029889 + 2371600 = 3167^2 + 1540^2 .

It is an emirp because it is prime and its reverse (98410421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12401489 is a prime.

Together with 12401491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12401429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6200744 + 6200745.

It is an arithmetic number, because the mean of its divisors is an integer number (6200745).

Almost surely, 2^12401489 is an apocalyptic number.

It is an amenable number.

12401489 is a deficient number, since it is larger than the sum of its proper divisors (1).

12401489 is an equidigital number, since it uses as much as digits as its factorization.

12401489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 12401489 is about 3521.5747897780. The cubic root of 12401489 is about 231.4681696600.

The spelling of 12401489 in words is "twelve million, four hundred one thousand, four hundred eighty-nine".