12751505 has 8 divisors (see below), whose sum is σ = 16478952. Its totient is φ = 9416448.

The previous prime is 12751481. The next prime is 12751517. The reversal of 12751505 is 50515721.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 332929 + 12418576 = 577^2 + 3524^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12751505 - 2⁶ = 12751441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98024 + ... + 98153.

It is an arithmetic number, because the mean of its divisors is an integer number (2059869).

Almost surely, 2^12751505 is an apocalyptic number.

It is an amenable number.

12751505 is a deficient number, since it is larger than the sum of its proper divisors (3727447).

12751505 is a wasteful number, since it uses less digits than its factorization.

12751505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196195.

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 12751505 is about 3570.9249502055. The cubic root of 12751505 is about 233.6256280231.

The spelling of 12751505 in words is "twelve million, seven hundred fifty-one thousand, five hundred five".