12751919 has 2 divisors, whose sum is σ = 12751920. Its totient is φ = 12751918.

The previous prime is 12751901. The next prime is 12751927. The reversal of 12751919 is 91915721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12751919 - 2⁸ = 12751663 is a prime.

It is a super-2 number, since 2×12751919² = 325222876365122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12751969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6375959 + 6375960.

It is an arithmetic number, because the mean of its divisors is an integer number (6375960).

Almost surely, 2^12751919 is an apocalyptic number.

12751919 is a deficient number, since it is larger than the sum of its proper divisors (1).

12751919 is an equidigital number, since it uses as much as digits as its factorization.

12751919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5670, while the sum is 35.

The square root of 12751919 is about 3570.9829179093. The cubic root of 12751919 is about 233.6281563511.

The spelling of 12751919 in words is "twelve million, seven hundred fifty-one thousand, nine hundred nineteen".