12732146 has 16 divisors (see below), whose sum is σ = 22135680. Its totient is φ = 5379360.

The previous prime is 12732143. The next prime is 12732163. The reversal of 12732146 is 64123721.

It is not an unprimeable number, because it can be changed into a prime (12732143) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5411 + ... + 7398.

It is an arithmetic number, because the mean of its divisors is an integer number (1383480).

Almost surely, 2^12732146 is an apocalyptic number.

12732146 is a deficient number, since it is larger than the sum of its proper divisors (9403534).

12732146 is a wasteful number, since it uses less digits than its factorization.

12732146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12889.

The product of its digits is 2016, while the sum is 26.

The square root of 12732146 is about 3568.2132783790. The cubic root of 12732146 is about 233.5073400447.

Adding to 12732146 its reverse (64123721), we get a palindrome (76855867).

The spelling of 12732146 in words is "twelve million, seven hundred thirty-two thousand, one hundred forty-six".