12518971 has 4 divisors (see below), whose sum is σ = 12755232. Its totient is φ = 12282712.

The previous prime is 12518959. The next prime is 12519019. The reversal of 12518971 is 17981521.

It is a happy number.

12518971 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12518971 - 2⁵ = 12518939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12518921) 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, 118051 + ... + 118156.

It is an arithmetic number, because the mean of its divisors is an integer number (3188808).

Almost surely, 2^12518971 is an apocalyptic number.

12518971 is a deficient number, since it is larger than the sum of its proper divisors (236261).

12518971 is an equidigital number, since it uses as much as digits as its factorization.

12518971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236260.

The product of its digits is 5040, while the sum is 34.

The square root of 12518971 is about 3538.2157933060. The cubic root of 12518971 is about 232.1967897774.

The spelling of 12518971 in words is "twelve million, five hundred eighteen thousand, nine hundred seventy-one".