12611365 has 32 divisors (see below), whose sum is σ = 17581536. Its totient is φ = 8601600.

The previous prime is 12611363. The next prime is 12611377. The reversal of 12611365 is 56311621.

It can be written as a sum of positive squares in 16 ways, for example, as 3381921 + 9229444 = 1839^2 + 3038^2 .

It is not a de Polignac number, because 12611365 - 2¹ = 12611363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12611363) 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 31 ways as a sum of consecutive naturals, for example, 111549 + ... + 111661.

It is an arithmetic number, because the mean of its divisors is an integer number (549423).

Almost surely, 2^12611365 is an apocalyptic number.

It is an amenable number.

12611365 is a deficient number, since it is larger than the sum of its proper divisors (4970171).

12611365 is a wasteful number, since it uses less digits than its factorization.

12611365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249.

The product of its digits is 1080, while the sum is 25.

The square root of 12611365 is about 3551.2483720517. The cubic root of 12611365 is about 232.7666190235.

Adding to 12611365 its reverse (56311621), we get a palindrome (68922986).

The spelling of 12611365 in words is "twelve million, six hundred eleven thousand, three hundred sixty-five".