12943285 has 8 divisors (see below), whose sum is σ = 15786936. Its totient is φ = 10184640.

The previous prime is 12943277. The next prime is 12943297. The reversal of 12943285 is 58234921.

It can be written as a sum of positive squares in 4 ways, for example, as 2033476 + 10909809 = 1426^2 + 3303^2 .

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

It is not a de Polignac number, because 12943285 - 2³ = 12943277 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12943285.

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, 20914 + ... + 21523.

It is an arithmetic number, because the mean of its divisors is an integer number (1973367).

Almost surely, 2^12943285 is an apocalyptic number.

It is an amenable number.

12943285 is a deficient number, since it is larger than the sum of its proper divisors (2843651).

12943285 is an equidigital number, since it uses as much as digits as its factorization.

12943285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42503.

The product of its digits is 17280, while the sum is 34.

The square root of 12943285 is about 3597.6777231987. The cubic root of 12943285 is about 234.7910319809.

The spelling of 12943285 in words is "twelve million, nine hundred forty-three thousand, two hundred eighty-five".