12115286 has 4 divisors (see below), whose sum is σ = 18172932. Its totient is φ = 6057642.

The previous prime is 12115283. The next prime is 12115297. The reversal of 12115286 is 68251121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68251121 = 53 ⋅1287757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12115283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3028820 + ... + 3028823.

It is an arithmetic number, because the mean of its divisors is an integer number (4543233).

Almost surely, 2^12115286 is an apocalyptic number.

12115286 is a deficient number, since it is larger than the sum of its proper divisors (6057646).

12115286 is an equidigital number, since it uses as much as digits as its factorization.

12115286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6057645.

The product of its digits is 960, while the sum is 26.

The square root of 12115286 is about 3480.7019407010. The cubic root of 12115286 is about 229.6736771202.

The spelling of 12115286 in words is "twelve million, one hundred fifteen thousand, two hundred eighty-six".