12871242 has 12 divisors (see below), whose sum is σ = 27887730. Its totient is φ = 4290408.

The previous prime is 12871241. The next prime is 12871247. The reversal of 12871242 is 24217821.

It can be written as a sum of positive squares in only one way, i.e., 12809241 + 62001 = 3579^2 + 249^2 .

It is not an unprimeable number, because it can be changed into a prime (12871241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357517 + ... + 357552.

Almost surely, 2^12871242 is an apocalyptic number.

12871242 is an abundant number, since it is smaller than the sum of its proper divisors (15016488).

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

12871242 is a wasteful number, since it uses less digits than its factorization.

12871242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715077 (or 715074 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 12871242 is about 3587.6513208505. The cubic root of 12871242 is about 234.3546015314.

The spelling of 12871242 in words is "twelve million, eight hundred seventy-one thousand, two hundred forty-two".