12007271 has 4 divisors (see below), whose sum is σ = 12186552. Its totient is φ = 11827992.

The previous prime is 12007223. The next prime is 12007291. The reversal of 12007271 is 17270021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17270021 = 151 ⋅114371.

It is a cyclic number.

It is not a de Polignac number, because 12007271 - 2⁶ = 12007207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12007211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89540 + ... + 89673.

It is an arithmetic number, because the mean of its divisors is an integer number (3046638).

Almost surely, 2^12007271 is an apocalyptic number.

12007271 is a deficient number, since it is larger than the sum of its proper divisors (179281).

12007271 is an equidigital number, since it uses as much as digits as its factorization.

12007271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179280.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 12007271 is about 3465.1509346636. The cubic root of 12007271 is about 228.9890792705.

Adding to 12007271 its reverse (17270021), we get a palindrome (29277292).

The spelling of 12007271 in words is "twelve million, seven thousand, two hundred seventy-one".