12671445 has 8 divisors (see below), whose sum is σ = 20274336. Its totient is φ = 6758096.

The previous prime is 12671437. The next prime is 12671473. The reversal of 12671445 is 54417621.

12671445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12671445 - 2³ = 12671437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422367 + ... + 422396.

It is an arithmetic number, because the mean of its divisors is an integer number (2534292).

Almost surely, 2^12671445 is an apocalyptic number.

12671445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12671445 is a deficient number, since it is larger than the sum of its proper divisors (7602891).

12671445 is an equidigital number, since it uses as much as digits as its factorization.

12671445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844771.

The product of its digits is 6720, while the sum is 30.

The square root of 12671445 is about 3559.6973185933. The cubic root of 12671445 is about 233.1356636560.

The spelling of 12671445 in words is "twelve million, six hundred seventy-one thousand, four hundred forty-five".