12989519 has 2 divisors, whose sum is σ = 12989520. Its totient is φ = 12989518.

The previous prime is 12989507. The next prime is 12989539. The reversal of 12989519 is 91598921.

It is a happy number.

12989519 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (91598921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12989519 - 2¹⁶ = 12923983 is a prime.

It is a super-2 number, since 2×12989519² = 337455207702722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12989519.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12989539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6494759 + 6494760.

It is an arithmetic number, because the mean of its divisors is an integer number (6494760).

Almost surely, 2^12989519 is an apocalyptic number.

12989519 is a deficient number, since it is larger than the sum of its proper divisors (1).

12989519 is an equidigital number, since it uses as much as digits as its factorization.

12989519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 44.

The square root of 12989519 is about 3604.0975292020. The cubic root of 12989519 is about 235.0702611699.

The spelling of 12989519 in words is "twelve million, nine hundred eighty-nine thousand, five hundred nineteen".