12756132 has 18 divisors (see below), whose sum is σ = 32244758. Its totient is φ = 4252032.

The previous prime is 12756131. The next prime is 12756151. The reversal of 12756132 is 23165721.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7986276 + 4769856 = 2826^2 + 2184^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 12756096 and 12756105.

It is not an unprimeable number, because it can be changed into a prime (12756131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 177133 + ... + 177204.

Almost surely, 2^12756132 is an apocalyptic number.

12756132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12756132 is an abundant number, since it is smaller than the sum of its proper divisors (19488626).

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

12756132 is a wasteful number, since it uses less digits than its factorization.

12756132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354347 (or 354342 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 12756132 is about 3571.5727628035. The cubic root of 12756132 is about 233.6538823366.

The spelling of 12756132 in words is "twelve million, seven hundred fifty-six thousand, one hundred thirty-two".