12751770 has 16 divisors (see below), whose sum is σ = 30604320. Its totient is φ = 3400464.

The previous prime is 12751769. The next prime is 12751771. The reversal of 12751770 is 7715721.

It is an interprime number because it is at equal distance from previous prime (12751769) and next prime (12751771).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 425059 = 12751770 / (1 + 2 + 7 + 5 + 1 + 7 + 7 + 0).

It is not an unprimeable number, because it can be changed into a prime (12751771) 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, 212500 + ... + 212559.

It is an arithmetic number, because the mean of its divisors is an integer number (1912770).

Almost surely, 2^12751770 is an apocalyptic number.

12751770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12751770 is an abundant number, since it is smaller than the sum of its proper divisors (17852550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12751770 is a wasteful number, since it uses less digits than its factorization.

12751770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425069.

The product of its (nonzero) digits is 3430, while the sum is 30.

The square root of 12751770 is about 3570.9620552451. The cubic root of 12751770 is about 233.6272464036.

It can be divided in two parts, 1275 and 1770, that multiplied together give a triangular number (2256750 = T₂₁₂₄).

The spelling of 12751770 in words is "twelve million, seven hundred fifty-one thousand, seven hundred seventy".