12651017 has 4 divisors (see below), whose sum is σ = 13316880. Its totient is φ = 11985156.

The previous prime is 12650999. The next prime is 12651019. The reversal of 12651017 is 71015621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12651017 - 2⁸ = 12650761 is a prime.

It is a super-2 number, since 2×12651017² = 320096462268578, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12650983 and 12651001.

It is not an unprimeable number, because it can be changed into a prime (12651019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332903 + ... + 332940.

It is an arithmetic number, because the mean of its divisors is an integer number (3329220).

Almost surely, 2^12651017 is an apocalyptic number.

It is an amenable number.

12651017 is a deficient number, since it is larger than the sum of its proper divisors (665863).

12651017 is an equidigital number, since it uses as much as digits as its factorization.

12651017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665862.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 12651017 is about 3556.8268161382. The cubic root of 12651017 is about 233.0103147085.

Adding to 12651017 its reverse (71015621), we get a palindrome (83666638).

The spelling of 12651017 in words is "twelve million, six hundred fifty-one thousand, seventeen".