12751551 has 12 divisors (see below), whose sum is σ = 18498480. Its totient is φ = 8464320.

The previous prime is 12751537. The next prime is 12751559. The reversal of 12751551 is 15515721.

It is not a de Polignac number, because 12751551 - 2¹³ = 12743359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12751559) 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 11 ways as a sum of consecutive naturals, for example, 771 + ... + 5108.

It is an arithmetic number, because the mean of its divisors is an integer number (1541540).

Almost surely, 2^12751551 is an apocalyptic number.

12751551 is a deficient number, since it is larger than the sum of its proper divisors (5746929).

12751551 is a wasteful number, since it uses less digits than its factorization.

12751551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6126 (or 6123 counting only the distinct ones).

The product of its digits is 1750, while the sum is 27.

The square root of 12751551 is about 3570.9313911079. The cubic root of 12751551 is about 233.6259089511.

The spelling of 12751551 in words is "twelve million, seven hundred fifty-one thousand, five hundred fifty-one".