12187082 has 4 divisors (see below), whose sum is σ = 18280626. Its totient is φ = 6093540.

The previous prime is 12187073. The next prime is 12187117. The reversal of 12187082 is 28078121.

It is a Cunningham number, because it is equal to 3491²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12187081 + 1 = 3491^2 + 1^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3046769 + ... + 3046772.

Almost surely, 2^12187082 is an apocalyptic number.

12187082 is a deficient number, since it is larger than the sum of its proper divisors (6093544).

12187082 is an equidigital number, since it uses as much as digits as its factorization.

12187082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6093543.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 12187082 is about 3491.0001432254. Note that the first 3 decimals coincide. The cubic root of 12187082 is about 230.1264710868.

The spelling of 12187082 in words is "twelve million, one hundred eighty-seven thousand, eighty-two".