12756147 has 8 divisors (see below), whose sum is σ = 17080320. Its totient is φ = 8468040.

The previous prime is 12756131. The next prime is 12756151. The reversal of 12756147 is 74165721.

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

It is not a de Polignac number, because 12756147 - 2⁴ = 12756131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12756047) 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, 8179 + ... + 9612.

It is an arithmetic number, because the mean of its divisors is an integer number (2135040).

Almost surely, 2^12756147 is an apocalyptic number.

12756147 is a deficient number, since it is larger than the sum of its proper divisors (4324173).

12756147 is a wasteful number, since it uses less digits than its factorization.

12756147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18033.

The product of its digits is 11760, while the sum is 33.

The square root of 12756147 is about 3571.5748627181. The cubic root of 12756147 is about 233.6539739215.

It can be divided in two parts, 1275614 and 7, that multiplied together give a palindrome (8929298).

The spelling of 12756147 in words is "twelve million, seven hundred fifty-six thousand, one hundred forty-seven".