12671571 has 8 divisors (see below), whose sum is σ = 18431424. Its totient is φ = 7679720.

The previous prime is 12671563. The next prime is 12671573. The reversal of 12671571 is 17517621.

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 12671571 - 2³ = 12671563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12671573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191961 + ... + 192026.

It is an arithmetic number, because the mean of its divisors is an integer number (2303928).

Almost surely, 2^12671571 is an apocalyptic number.

12671571 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12671571 is a deficient number, since it is larger than the sum of its proper divisors (5759853).

12671571 is a wasteful number, since it uses less digits than its factorization.

12671571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384001.

The product of its digits is 2940, while the sum is 30.

The square root of 12671571 is about 3559.7150166832. The cubic root of 12671571 is about 233.1364363908.

The spelling of 12671571 in words is "twelve million, six hundred seventy-one thousand, five hundred seventy-one".