12732945 has 32 divisors (see below), whose sum is σ = 21964800. Its totient is φ = 6277824.

The previous prime is 12732883. The next prime is 12732959. The reversal of 12732945 is 54923721.

It is not a de Polignac number, because 12732945 - 2⁸ = 12732689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11736 + ... + 12774.

It is an arithmetic number, because the mean of its divisors is an integer number (686400).

Almost surely, 2^12732945 is an apocalyptic number.

12732945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12732945 is a deficient number, since it is larger than the sum of its proper divisors (9231855).

12732945 is a wasteful number, since it uses less digits than its factorization.

12732945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109.

The product of its digits is 15120, while the sum is 33.

The square root of 12732945 is about 3568.3252374188. The cubic root of 12732945 is about 233.5122244913.

The spelling of 12732945 in words is "twelve million, seven hundred thirty-two thousand, nine hundred forty-five".