12147982 has 48 divisors (see below), whose sum is σ = 23639040. Its totient is φ = 4628400.

The previous prime is 12147959. The next prime is 12147983. The reversal of 12147982 is 28974121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12147983) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 63507 + ... + 63697.

It is an arithmetic number, because the mean of its divisors is an integer number (492480).

Almost surely, 2^12147982 is an apocalyptic number.

12147982 is a deficient number, since it is larger than the sum of its proper divisors (11491058).

12147982 is a wasteful number, since it uses less digits than its factorization.

12147982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 270 counting only the distinct ones).

The product of its digits is 8064, while the sum is 34.

The square root of 12147982 is about 3485.3955299220. The cubic root of 12147982 is about 229.8801013390.

The spelling of 12147982 in words is "twelve million, one hundred forty-seven thousand, nine hundred eighty-two".