12271488 has 32 divisors (see below), whose sum is σ = 32597160. Its totient is φ = 4090368.

The previous prime is 12271477. The next prime is 12271499. The reversal of 12271488 is 88417221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12271477) and next prime (12271499).

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15595 + ... + 16362.

Almost surely, 2^12271488 is an apocalyptic number.

It is an amenable number.

12271488 is an abundant number, since it is smaller than the sum of its proper divisors (20325672).

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

12271488 is an equidigital number, since it uses as much as digits as its factorization.

12271488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31974 (or 31962 counting only the distinct ones).

The product of its digits is 7168, while the sum is 33.

The square root of 12271488 is about 3503.0683693014. The cubic root of 12271488 is about 230.6565236982.

The spelling of 12271488 in words is "twelve million, two hundred seventy-one thousand, four hundred eighty-eight".