12671142 has 32 divisors (see below), whose sum is σ = 27907200. Its totient is φ = 3803520.

The previous prime is 12671123. The next prime is 12671161. The reversal of 12671142 is 24117621.

It is an interprime number because it is at equal distance from previous prime (12671123) and next prime (12671161).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6609 + ... + 8307.

It is an arithmetic number, because the mean of its divisors is an integer number (872100).

Almost surely, 2^12671142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12671142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13953600).

12671142 is an abundant number, since it is smaller than the sum of its proper divisors (15236058).

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

12671142 is a wasteful number, since it uses less digits than its factorization.

12671142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828.

The product of its digits is 672, while the sum is 24.

The square root of 12671142 is about 3559.6547585405. The cubic root of 12671142 is about 233.1338053921.

Adding to 12671142 its reverse (24117621), we get a palindrome (36788763).

The spelling of 12671142 in words is "twelve million, six hundred seventy-one thousand, one hundred forty-two".