12486239 has 2 divisors, whose sum is σ = 12486240. Its totient is φ = 12486238.

The previous prime is 12486209. The next prime is 12486251. The reversal of 12486239 is 93268421.

It is a strong prime.

It is an emirp because it is prime and its reverse (93268421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12486239 - 2¹⁶ = 12420703 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12486199 and 12486208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12486209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6243119 + 6243120.

It is an arithmetic number, because the mean of its divisors is an integer number (6243120).

Almost surely, 2^12486239 is an apocalyptic number.

12486239 is a deficient number, since it is larger than the sum of its proper divisors (1).

12486239 is an equidigital number, since it uses as much as digits as its factorization.

12486239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 12486239 is about 3533.5872707491. The cubic root of 12486239 is about 231.9942465379.

The spelling of 12486239 in words is "twelve million, four hundred eighty-six thousand, two hundred thirty-nine".