12271475 has 6 divisors (see below), whose sum is σ = 15216660. Its totient is φ = 9817160.

The previous prime is 12271471. The next prime is 12271477. The reversal of 12271475 is 57417221.

It is not a de Polignac number, because 12271475 - 2² = 12271471 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12271471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 245405 + ... + 245454.

It is an arithmetic number, because the mean of its divisors is an integer number (2536110).

Almost surely, 2^12271475 is an apocalyptic number.

12271475 is a deficient number, since it is larger than the sum of its proper divisors (2945185).

12271475 is an equidigital number, since it uses as much as digits as its factorization.

12271475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490869 (or 490864 counting only the distinct ones).

The product of its digits is 3920, while the sum is 29.

The square root of 12271475 is about 3503.0665137847. The cubic root of 12271475 is about 230.6564422482.

Adding to 12271475 its reverse (57417221), we get a palindrome (69688696).

The spelling of 12271475 in words is "twelve million, two hundred seventy-one thousand, four hundred seventy-five".