12020186 has 4 divisors (see below), whose sum is σ = 18030282. Its totient is φ = 6010092.

The previous prime is 12020161. The next prime is 12020209. The reversal of 12020186 is 68102021.

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., 11689561 + 330625 = 3419^2 + 575^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3005045 + ... + 3005048.

Almost surely, 2^12020186 is an apocalyptic number.

12020186 is a deficient number, since it is larger than the sum of its proper divisors (6010096).

12020186 is an equidigital number, since it uses as much as digits as its factorization.

12020186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6010095.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 12020186 is about 3467.0139890113. The cubic root of 12020186 is about 229.0711499389.

The spelling of 12020186 in words is "twelve million, twenty thousand, one hundred eighty-six".