12586342 has 4 divisors (see below), whose sum is σ = 18879516. Its totient is φ = 6293170.

The previous prime is 12586337. The next prime is 12586367. The reversal of 12586342 is 24368521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24368521 = 277 ⋅87973.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3146584 + ... + 3146587.

It is an arithmetic number, because the mean of its divisors is an integer number (4719879).

Almost surely, 2^12586342 is an apocalyptic number.

12586342 is a deficient number, since it is larger than the sum of its proper divisors (6293174).

12586342 is an equidigital number, since it uses as much as digits as its factorization.

12586342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6293173.

The product of its digits is 11520, while the sum is 31.

The square root of 12586342 is about 3547.7234954263. The cubic root of 12586342 is about 232.6125681436.

The spelling of 12586342 in words is "twelve million, five hundred eighty-six thousand, three hundred forty-two".