12775005 has 24 divisors (see below), whose sum is σ = 23107968. Its totient is φ = 6516576.

The previous prime is 12775003. The next prime is 12775013. The reversal of 12775005 is 50057721.

It is not a de Polignac number, because 12775005 - 2¹ = 12775003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12775005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12775003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5137 + ... + 7206.

It is an arithmetic number, because the mean of its divisors is an integer number (962832).

Almost surely, 2^12775005 is an apocalyptic number.

12775005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12775005 is a deficient number, since it is larger than the sum of its proper divisors (10332963).

12775005 is a wasteful number, since it uses less digits than its factorization.

12775005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12377 (or 12374 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 12775005 is about 3574.2138995869. The cubic root of 12775005 is about 233.7690577082.

The spelling of 12775005 in words is "twelve million, seven hundred seventy-five thousand, five".