12751765 has 8 divisors (see below), whose sum is σ = 16479288. Its totient is φ = 9416640.

The previous prime is 12751741. The next prime is 12751769. The reversal of 12751765 is 56715721.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 198916 + 12552849 = 446^2 + 3543^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12751765 - 2⁹ = 12751253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12751765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12751769) 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 in 7 ways as a sum of consecutive naturals, for example, 98026 + ... + 98155.

It is an arithmetic number, because the mean of its divisors is an integer number (2059911).

Almost surely, 2^12751765 is an apocalyptic number.

It is an amenable number.

12751765 is a deficient number, since it is larger than the sum of its proper divisors (3727523).

12751765 is a wasteful number, since it uses less digits than its factorization.

12751765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196199.

The product of its digits is 14700, while the sum is 34.

The square root of 12751765 is about 3570.9613551535. The cubic root of 12751765 is about 233.6272158684.

The spelling of 12751765 in words is "twelve million, seven hundred fifty-one thousand, seven hundred sixty-five".