12756141 has 6 divisors (see below), whose sum is σ = 18425550. Its totient is φ = 8504088.

The previous prime is 12756131. The next prime is 12756151. The reversal of 12756141 is 14165721.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12756131) and next prime (12756151).

It can be written as a sum of positive squares in only one way, i.e., 6734025 + 6022116 = 2595^2 + 2454^2 .

It is not a de Polignac number, because 12756141 - 2⁷ = 12756013 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12756131) 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 5 ways as a sum of consecutive naturals, for example, 708666 + ... + 708683.

It is an arithmetic number, because the mean of its divisors is an integer number (3070925).

Almost surely, 2^12756141 is an apocalyptic number.

It is an amenable number.

12756141 is a deficient number, since it is larger than the sum of its proper divisors (5669409).

12756141 is a wasteful number, since it uses less digits than its factorization.

12756141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417355 (or 1417352 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 12756141 is about 3571.5740227524. The cubic root of 12756141 is about 233.6539372875.

The spelling of 12756141 in words is "twelve million, seven hundred fifty-six thousand, one hundred forty-one".