12180717 has 12 divisors (see below), whose sum is σ = 17712864. Its totient is φ = 8065800.

The previous prime is 12180703. The next prime is 12180719. The reversal of 12180717 is 71708121.

It is not a de Polignac number, because 12180717 - 2⁸ = 12180461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12180719) 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, 3123 + ... + 5840.

It is an arithmetic number, because the mean of its divisors is an integer number (1476072).

Almost surely, 2^12180717 is an apocalyptic number.

It is an amenable number.

12180717 is a deficient number, since it is larger than the sum of its proper divisors (5532147).

12180717 is a wasteful number, since it uses less digits than its factorization.

12180717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9120 (or 9117 counting only the distinct ones).

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

The square root of 12180717 is about 3490.0883942961. The cubic root of 12180717 is about 230.0864010612.

Adding to 12180717 its reverse (71708121), we get a palindrome (83888838).

The spelling of 12180717 in words is "twelve million, one hundred eighty thousand, seven hundred seventeen".