12751887 has 8 divisors (see below), whose sum is σ = 18002736. Its totient is φ = 8001152.

The previous prime is 12751883. The next prime is 12751889. The reversal of 12751887 is 78815721.

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

It is not a de Polignac number, because 12751887 - 2² = 12751883 is a prime.

It is a super-2 number, since 2×12751887² = 325221244121538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12751883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124968 + ... + 125069.

It is an arithmetic number, because the mean of its divisors is an integer number (2250342).

Almost surely, 2^12751887 is an apocalyptic number.

12751887 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12751887 is a deficient number, since it is larger than the sum of its proper divisors (5250849).

12751887 is a wasteful number, since it uses less digits than its factorization.

12751887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250057.

The product of its digits is 31360, while the sum is 39.

The square root of 12751887 is about 3570.9784373474. The cubic root of 12751887 is about 233.6279609268.

The spelling of 12751887 in words is "twelve million, seven hundred fifty-one thousand, eight hundred eighty-seven".