12732518 has 16 divisors (see below), whose sum is σ = 19459440. Its totient is φ = 6247296.

The previous prime is 12732493. The next prime is 12732521. The reversal of 12732518 is 81523721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41321 + ... + 41627.

It is an arithmetic number, because the mean of its divisors is an integer number (1216215).

Almost surely, 2^12732518 is an apocalyptic number.

12732518 is a deficient number, since it is larger than the sum of its proper divisors (6726922).

12732518 is a wasteful number, since it uses less digits than its factorization.

12732518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631.

The product of its digits is 3360, while the sum is 29.

The square root of 12732518 is about 3568.2654049272. The cubic root of 12732518 is about 233.5096141805.

The spelling of 12732518 in words is "twelve million, seven hundred thirty-two thousand, five hundred eighteen".