12704146 has 48 divisors (see below), whose sum is σ = 24583104. Its totient is φ = 4794048.

The previous prime is 12704129. The next prime is 12704161. The reversal of 12704146 is 64140721.

It is a super-2 number, since 2×12704146² = 322790651178632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12704146.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153021 + ... + 153103.

It is an arithmetic number, because the mean of its divisors is an integer number (512148).

Almost surely, 2^12704146 is an apocalyptic number.

12704146 is a deficient number, since it is larger than the sum of its proper divisors (11878958).

12704146 is a wasteful number, since it uses less digits than its factorization.

12704146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 12704146 is about 3564.2875866013. The cubic root of 12704146 is about 233.3360412384.

Adding to 12704146 its reverse (64140721), we get a palindrome (76844867).

The spelling of 12704146 in words is "twelve million, seven hundred four thousand, one hundred forty-six".