12620171 has 8 divisors (see below), whose sum is σ = 13533120. Its totient is φ = 11726208.

The previous prime is 12620149. The next prime is 12620203. The reversal of 12620171 is 17102621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12620171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12620141) 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, 3356 + ... + 6041.

It is an arithmetic number, because the mean of its divisors is an integer number (1691640).

Almost surely, 2^12620171 is an apocalyptic number.

12620171 is a deficient number, since it is larger than the sum of its proper divisors (912949).

12620171 is an equidigital number, since it uses as much as digits as its factorization.

12620171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9493.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 12620171 is about 3552.4880013872. The cubic root of 12620171 is about 232.8207835528.

Adding to 12620171 its reverse (17102621), we get a palindrome (29722792).

The spelling of 12620171 in words is "twelve million, six hundred twenty thousand, one hundred seventy-one".