12751679 has 4 divisors (see below), whose sum is σ = 13422840. Its totient is φ = 12080520.

The previous prime is 12751667. The next prime is 12751681. The reversal of 12751679 is 97615721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97615721 = 7 ⋅13945103.

It is a cyclic number.

It is not a de Polignac number, because 12751679 - 2⁴ = 12751663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12751639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335552 + ... + 335589.

It is an arithmetic number, because the mean of its divisors is an integer number (3355710).

Almost surely, 2^12751679 is an apocalyptic number.

12751679 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12751679 is a deficient number, since it is larger than the sum of its proper divisors (671161).

12751679 is an equidigital number, since it uses as much as digits as its factorization.

12751679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671160.

The product of its digits is 26460, while the sum is 38.

The square root of 12751679 is about 3570.9493135580. The cubic root of 12751679 is about 233.6266906604.

The spelling of 12751679 in words is "twelve million, seven hundred fifty-one thousand, six hundred seventy-nine".