12775039 has 4 divisors (see below), whose sum is σ = 12783256. Its totient is φ = 12766824.

The previous prime is 12775031. The next prime is 12775043. The reversal of 12775039 is 93057721.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 93057721 = 1213 ⋅76717.

It is a cyclic number.

It is not a de Polignac number, because 12775039 - 2³ = 12775031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12774995 and 12775013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12775031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 984 + ... + 5149.

It is an arithmetic number, because the mean of its divisors is an integer number (3195814).

Almost surely, 2^12775039 is an apocalyptic number.

12775039 is a deficient number, since it is larger than the sum of its proper divisors (8217).

12775039 is an equidigital number, since it uses as much as digits as its factorization.

12775039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8216.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 12775039 is about 3574.2186558743. The cubic root of 12775039 is about 233.7692650960.

The spelling of 12775039 in words is "twelve million, seven hundred seventy-five thousand, thirty-nine".