12149206 has 4 divisors (see below), whose sum is σ = 18223812. Its totient is φ = 6074602.

The previous prime is 12149191. The next prime is 12149213. The reversal of 12149206 is 60294121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60294121 = 17 ⋅3546713.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3037300 + ... + 3037303.

It is an arithmetic number, because the mean of its divisors is an integer number (4555953).

Almost surely, 2^12149206 is an apocalyptic number.

12149206 is a deficient number, since it is larger than the sum of its proper divisors (6074606).

12149206 is an equidigital number, since it uses as much as digits as its factorization.

12149206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6074605.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 12149206 is about 3485.5711153267. The cubic root of 12149206 is about 229.8878217926.

The spelling of 12149206 in words is "twelve million, one hundred forty-nine thousand, two hundred six".