12147276 has 24 divisors (see below), whose sum is σ = 28402864. Its totient is φ = 4040640.

The previous prime is 12147271. The next prime is 12147283. The reversal of 12147276 is 67274121.

12147276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12147271) 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, 8106 + ... + 9486.

Almost surely, 2^12147276 is an apocalyptic number.

It is an amenable number.

12147276 is an abundant number, since it is smaller than the sum of its proper divisors (16255588).

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

12147276 is a wasteful number, since it uses less digits than its factorization.

12147276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121 (or 2119 counting only the distinct ones).

The product of its digits is 4704, while the sum is 30.

The square root of 12147276 is about 3485.2942486969. The cubic root of 12147276 is about 229.8756479657.

The spelling of 12147276 in words is "twelve million, one hundred forty-seven thousand, two hundred seventy-six".