12871385 has 8 divisors (see below), whose sum is σ = 15470016. Its totient is φ = 10280880.

The previous prime is 12871367. The next prime is 12871387. The reversal of 12871385 is 58317821.

12871385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12871385 - 2⁶ = 12871321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12871387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2300 + ... + 5570.

It is an arithmetic number, because the mean of its divisors is an integer number (1933752).

Almost surely, 2^12871385 is an apocalyptic number.

It is an amenable number.

12871385 is a deficient number, since it is larger than the sum of its proper divisors (2598631).

12871385 is an equidigital number, since it uses as much as digits as its factorization.

12871385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063.

The product of its digits is 13440, while the sum is 35.

The square root of 12871385 is about 3587.6712502681. The cubic root of 12871385 is about 234.3554694244.

The spelling of 12871385 in words is "twelve million, eight hundred seventy-one thousand, three hundred eighty-five".