12087271 has 24 divisors (see below), whose sum is σ = 14815440. Its totient is φ = 9821952.

The previous prime is 12087263. The next prime is 12087281. The reversal of 12087271 is 17278021.

It is not a de Polignac number, because 12087271 - 2³ = 12087263 is a prime.

It is a super-2 number, since 2×12087271² = 292204240454882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12087281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106911 + ... + 107023.

It is an arithmetic number, because the mean of its divisors is an integer number (617310).

Almost surely, 2^12087271 is an apocalyptic number.

12087271 is a deficient number, since it is larger than the sum of its proper divisors (2728169).

12087271 is a wasteful number, since it uses less digits than its factorization.

12087271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 12087271 is about 3476.6752796314. The cubic root of 12087271 is about 229.4965104692.

The spelling of 12087271 in words is "twelve million, eighty-seven thousand, two hundred seventy-one".