12542271 has 16 divisors (see below), whose sum is σ = 19427328. Its totient is φ = 7048800.

The previous prime is 12542267. The next prime is 12542273. The reversal of 12542271 is 17224521.

It is not a de Polignac number, because 12542271 - 2² = 12542267 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12542273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3615 + ... + 6176.

It is an arithmetic number, because the mean of its divisors is an integer number (1214208).

Almost surely, 2^12542271 is an apocalyptic number.

12542271 is a deficient number, since it is larger than the sum of its proper divisors (6885057).

12542271 is an equidigital number, since it uses as much as digits as its factorization.

12542271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9862.

The product of its digits is 1120, while the sum is 24.

The square root of 12542271 is about 3541.5068826701. The cubic root of 12542271 is about 232.3407534794.

Adding to 12542271 its reverse (17224521), we get a palindrome (29766792).

The spelling of 12542271 in words is "twelve million, five hundred forty-two thousand, two hundred seventy-one".