12975171 has 8 divisors (see below), whose sum is σ = 18873024. Its totient is φ = 7863720.

The previous prime is 12975161. The next prime is 12975181. The reversal of 12975171 is 17157921.

It is an interprime number because it is at equal distance from previous prime (12975161) and next prime (12975181).

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

It is not a de Polignac number, because 12975171 - 2⁵ = 12975139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 393187 = 12975171 / (1 + 2 + 9 + 7 + 5 + 1 + 7 + 1).

It is not an unprimeable number, because it can be changed into a prime (12975101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196561 + ... + 196626.

It is an arithmetic number, because the mean of its divisors is an integer number (2359128).

Almost surely, 2^12975171 is an apocalyptic number.

12975171 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12975171 is a deficient number, since it is larger than the sum of its proper divisors (5897853).

12975171 is a wasteful number, since it uses less digits than its factorization.

12975171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393201.

The product of its digits is 4410, while the sum is 33.

The square root of 12975171 is about 3602.1064670551. The cubic root of 12975171 is about 234.9836777557.

The spelling of 12975171 in words is "twelve million, nine hundred seventy-five thousand, one hundred seventy-one".