12700171 has 4 divisors (see below), whose sum is σ = 13854744. Its totient is φ = 11545600.

The previous prime is 12700159. The next prime is 12700223. The reversal of 12700171 is 17100721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17100721 = 11 ⋅1554611.

It is not a de Polignac number, because 12700171 - 2¹¹ = 12698123 is a prime.

It is a super-2 number, since 2×12700171² = 322588686858482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12700141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577270 + ... + 577291.

It is an arithmetic number, because the mean of its divisors is an integer number (3463686).

Almost surely, 2^12700171 is an apocalyptic number.

12700171 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12700171 is a deficient number, since it is larger than the sum of its proper divisors (1154573).

12700171 is a wasteful number, since it uses less digits than its factorization.

12700171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154572.

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 12700171 is about 3563.7299280389. The cubic root of 12700171 is about 233.3117025300.

Adding to 12700171 its reverse (17100721), we get a palindrome (29800892).

The spelling of 12700171 in words is "twelve million, seven hundred thousand, one hundred seventy-one".