12271375 has 16 divisors (see below), whose sum is σ = 15455232. Its totient is φ = 9727200.

The previous prime is 12271349. The next prime is 12271403. The reversal of 12271375 is 57317221.

It is not a de Polignac number, because 12271375 - 2⁷ = 12271247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15489 + ... + 16261.

It is an arithmetic number, because the mean of its divisors is an integer number (965952).

Almost surely, 2^12271375 is an apocalyptic number.

12271375 is a deficient number, since it is larger than the sum of its proper divisors (3183857).

12271375 is an equidigital number, since it uses as much as digits as its factorization.

12271375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915 (or 905 counting only the distinct ones).

The product of its digits is 2940, while the sum is 28.

The square root of 12271375 is about 3503.0522405468. The cubic root of 12271375 is about 230.6558157083.

Adding to 12271375 its reverse (57317221), we get a palindrome (69588596).

The spelling of 12271375 in words is "twelve million, two hundred seventy-one thousand, three hundred seventy-five".