12840259 has 8 divisors (see below), whose sum is σ = 13181760. Its totient is φ = 12501696.

The previous prime is 12840241. The next prime is 12840281. The reversal of 12840259 is 95204821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12840259 - 2⁷ = 12840131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12840259.

It is not an unprimeable number, because it can be changed into a prime (12840299) 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 in 7 ways as a sum of consecutive naturals, for example, 10167 + ... + 11359.

It is an arithmetic number, because the mean of its divisors is an integer number (1647720).

Almost surely, 2^12840259 is an apocalyptic number.

12840259 is a deficient number, since it is larger than the sum of its proper divisors (341501).

12840259 is a wasteful number, since it uses less digits than its factorization.

12840259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 12840259 is about 3583.3307131773. The cubic root of 12840259 is about 234.1664082828.

The spelling of 12840259 in words is "twelve million, eight hundred forty thousand, two hundred fifty-nine".