12286831 has 4 divisors (see below), whose sum is σ = 12518712. Its totient is φ = 12054952.

The previous prime is 12286817. The next prime is 12286843. The reversal of 12286831 is 13868221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13868221 = 83 ⋅167087.

It is a cyclic number.

It is not a de Polignac number, because 12286831 - 2²¹ = 10189679 is a prime.

It is a super-2 number, since 2×12286831² = 301932432045122, which contains 22 as substring.

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 Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12286793 and 12286802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12286811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115861 + ... + 115966.

It is an arithmetic number, because the mean of its divisors is an integer number (3129678).

Almost surely, 2^12286831 is an apocalyptic number.

12286831 is a deficient number, since it is larger than the sum of its proper divisors (231881).

12286831 is an equidigital number, since it uses as much as digits as its factorization.

12286831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231880.

The product of its digits is 4608, while the sum is 31.

The square root of 12286831 is about 3505.2576224865. The cubic root of 12286831 is about 230.7526133533.

The spelling of 12286831 in words is "twelve million, two hundred eighty-six thousand, eight hundred thirty-one".