12906571 has 8 divisors (see below), whose sum is σ = 13389824. Its totient is φ = 12427560.

The previous prime is 12906559. The next prime is 12906577. The reversal of 12906571 is 17560921.

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 12906571 - 2¹⁵ = 12873803 is a prime.

It is a super-3 number, since 3×12906571³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12906577) 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, 5980 + ... + 7846.

It is an arithmetic number, because the mean of its divisors is an integer number (1673728).

Almost surely, 2^12906571 is an apocalyptic number.

12906571 is a deficient number, since it is larger than the sum of its proper divisors (483253).

12906571 is a wasteful number, since it uses less digits than its factorization.

12906571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 12906571 is about 3592.5716415960. The cubic root of 12906571 is about 234.5688245784.

The spelling of 12906571 in words is "twelve million, nine hundred six thousand, five hundred seventy-one".