12287271 has 8 divisors (see below), whose sum is σ = 16948080. Its totient is φ = 7908992.

The previous prime is 12287269. The next prime is 12287273. The reversal of 12287271 is 17278221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12287269) and next prime (12287273).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12287271 - 2¹ = 12287269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12287273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70530 + ... + 70703.

It is an arithmetic number, because the mean of its divisors is an integer number (2118510).

Almost surely, 2^12287271 is an apocalyptic number.

12287271 is a deficient number, since it is larger than the sum of its proper divisors (4660809).

12287271 is a wasteful number, since it uses less digits than its factorization.

12287271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141265.

The product of its digits is 3136, while the sum is 30.

The square root of 12287271 is about 3505.3203847865. The cubic root of 12287271 is about 230.7553677912.

The spelling of 12287271 in words is "twelve million, two hundred eighty-seven thousand, two hundred seventy-one".