12958289 has 2 divisors, whose sum is σ = 12958290. Its totient is φ = 12958288.

The previous prime is 12958271. The next prime is 12958313. The reversal of 12958289 is 98285921.

12958289 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11730625 + 1227664 = 3425^2 + 1108^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12958289 is a prime.

It is not a weakly prime, because it can be changed into another prime (12558289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6479144 + 6479145.

It is an arithmetic number, because the mean of its divisors is an integer number (6479145).

Almost surely, 2^12958289 is an apocalyptic number.

It is an amenable number.

12958289 is a deficient number, since it is larger than the sum of its proper divisors (1).

12958289 is an equidigital number, since it uses as much as digits as its factorization.

12958289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 44.

The square root of 12958289 is about 3599.7623532672. The cubic root of 12958289 is about 234.8817210730.

The spelling of 12958289 in words is "twelve million, nine hundred fifty-eight thousand, two hundred eighty-nine".