12718071 has 12 divisors (see below), whose sum is σ = 18409248. Its totient is φ = 8460864.

The previous prime is 12718063. The next prime is 12718093. The reversal of 12718071 is 17081721.

It is not a de Polignac number, because 12718071 - 2³ = 12718063 is a prime.

It is a super-2 number, since 2×12718071² = 323498659922082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12718061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4146 + ... + 6528.

It is an arithmetic number, because the mean of its divisors is an integer number (1534104).

Almost surely, 2^12718071 is an apocalyptic number.

12718071 is a deficient number, since it is larger than the sum of its proper divisors (5691177).

12718071 is a wasteful number, since it uses less digits than its factorization.

12718071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2982 (or 2979 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 27.

The square root of 12718071 is about 3566.2404574005. The cubic root of 12718071 is about 233.4212632320.

Adding to 12718071 its reverse (17081721), we get a palindrome (29799792).

The spelling of 12718071 in words is "twelve million, seven hundred eighteen thousand, seventy-one".