12775365 has 24 divisors (see below), whose sum is σ = 22453080. Its totient is φ = 6718464.

The previous prime is 12775363. The next prime is 12775369. The reversal of 12775365 is 56357721.

It can be written as a sum of positive squares in 4 ways, for example, as 2643876 + 10131489 = 1626^2 + 3183^2 .

It is not a de Polignac number, because 12775365 - 2¹ = 12775363 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 (12775363) 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, 1341 + ... + 5229.

It is an arithmetic number, because the mean of its divisors is an integer number (935545).

Almost surely, 2^12775365 is an apocalyptic number.

12775365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12775365 is a deficient number, since it is larger than the sum of its proper divisors (9677715).

12775365 is a wasteful number, since it uses less digits than its factorization.

12775365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3973 (or 3970 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 12775365 is about 3574.2642599562. The cubic root of 12775365 is about 233.7712535604.

The spelling of 12775365 in words is "twelve million, seven hundred seventy-five thousand, three hundred sixty-five".