12871506 has 16 divisors (see below), whose sum is σ = 26096544. Its totient is φ = 4231584.

The previous prime is 12871501. The next prime is 12871511. The reversal of 12871506 is 60517821.

It is an interprime number because it is at equal distance from previous prime (12871501) and next prime (12871511).

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (12871501) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14256 + ... + 15131.

It is an arithmetic number, because the mean of its divisors is an integer number (1631034).

Almost surely, 2^12871506 is an apocalyptic number.

12871506 is an abundant number, since it is smaller than the sum of its proper divisors (13225038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12871506 is a wasteful number, since it uses less digits than its factorization.

12871506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29465.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 12871506 is about 3587.6881135350. The cubic root of 12871506 is about 234.3562037904.

The spelling of 12871506 in words is "twelve million, eight hundred seventy-one thousand, five hundred six".