12708945 has 48 divisors (see below), whose sum is σ = 24008400. Its totient is φ = 6193152.

The previous prime is 12708937. The next prime is 12708961. The reversal of 12708945 is 54980721.

It can be written as a sum of positive squares in 8 ways, for example, as 1580049 + 11128896 = 1257^2 + 3336^2 .

It is not a de Polignac number, because 12708945 - 2³ = 12708937 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 28081 + ... + 28529.

It is an arithmetic number, because the mean of its divisors is an integer number (500175).

Almost surely, 2^12708945 is an apocalyptic number.

12708945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12708945 is a deficient number, since it is larger than the sum of its proper divisors (11299455).

12708945 is a wasteful number, since it uses less digits than its factorization.

12708945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 12708945 is about 3564.9607290965. The cubic root of 12708945 is about 233.3654184903.

The spelling of 12708945 in words is "twelve million, seven hundred eight thousand, nine hundred forty-five".