12775771 has 8 divisors (see below), whose sum is σ = 13482000. Its totient is φ = 12072960.

The previous prime is 12775769. The next prime is 12775783. The reversal of 12775771 is 17757721.

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

It is a cyclic number.

It is not a de Polignac number, because 12775771 - 2¹ = 12775769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12775771.

It is not an unprimeable number, because it can be changed into a prime (12775871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11655 + ... + 12703.

It is an arithmetic number, because the mean of its divisors is an integer number (1685250).

Almost surely, 2^12775771 is an apocalyptic number.

12775771 is a deficient number, since it is larger than the sum of its proper divisors (706229).

12775771 is a wasteful number, since it uses less digits than its factorization.

12775771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709.

The product of its digits is 24010, while the sum is 37.

The square root of 12775771 is about 3574.3210544102. The cubic root of 12775771 is about 233.7737299443.

It can be divided in two parts, 1 and 2775771, that added together give a palindrome (2775772).

The spelling of 12775771 in words is "twelve million, seven hundred seventy-five thousand, seven hundred seventy-one".