12820259 has 2 divisors, whose sum is σ = 12820260. Its totient is φ = 12820258.

The previous prime is 12820243. The next prime is 12820289. The reversal of 12820259 is 95202821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12820259 - 2⁴ = 12820243 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12820219) 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, 6410129 + 6410130.

It is an arithmetic number, because the mean of its divisors is an integer number (6410130).

Almost surely, 2^12820259 is an apocalyptic number.

12820259 is a deficient number, since it is larger than the sum of its proper divisors (1).

12820259 is an equidigital number, since it uses as much as digits as its factorization.

12820259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 12820259 is about 3580.5389259160. The cubic root of 12820259 is about 234.0447658285.

The spelling of 12820259 in words is "twelve million, eight hundred twenty thousand, two hundred fifty-nine".