12942845 has 8 divisors (see below), whose sum is σ = 16067160. Its totient is φ = 9997120.

The previous prime is 12942833. The next prime is 12942869. The reversal of 12942845 is 54824921.

It can be written as a sum of positive squares in 4 ways, for example, as 964324 + 11978521 = 982^2 + 3461^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12942845 - 2⁴ = 12942829 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44486 + ... + 44775.

It is an arithmetic number, because the mean of its divisors is an integer number (2008395).

Almost surely, 2^12942845 is an apocalyptic number.

It is an amenable number.

12942845 is a deficient number, since it is larger than the sum of its proper divisors (3124315).

12942845 is an equidigital number, since it uses as much as digits as its factorization.

12942845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89295.

The product of its digits is 23040, while the sum is 35.

The square root of 12942845 is about 3597.6165721210. The cubic root of 12942845 is about 234.7883714193.

The spelling of 12942845 in words is "twelve million, nine hundred forty-two thousand, eight hundred forty-five".