12678259 has 6 divisors (see below), whose sum is σ = 13935740. Its totient is φ = 11525580.

The previous prime is 12678251. The next prime is 12678269. The reversal of 12678259 is 95287621.

12678259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12678259 - 2³ = 12678251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12678251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52269 + ... + 52510.

Almost surely, 2^12678259 is an apocalyptic number.

12678259 is a deficient number, since it is larger than the sum of its proper divisors (1257481).

12678259 is a wasteful number, since it uses less digits than its factorization.

12678259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104801 (or 104790 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 12678259 is about 3560.6542938061. The cubic root of 12678259 is about 233.1774453088.

The spelling of 12678259 in words is "twelve million, six hundred seventy-eight thousand, two hundred fifty-nine".