12585161 has 2 divisors, whose sum is σ = 12585162. Its totient is φ = 12585160.

The previous prime is 12585137. The next prime is 12585169. The reversal of 12585161 is 16158521.

12585161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10465225 + 2119936 = 3235^2 + 1456^2 .

It is an emirp because it is prime and its reverse (16158521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12585161 - 2²² = 8390857 is a prime.

It is not a weakly prime, because it can be changed into another prime (12585169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6292580 + 6292581.

It is an arithmetic number, because the mean of its divisors is an integer number (6292581).

Almost surely, 2^12585161 is an apocalyptic number.

It is an amenable number.

12585161 is a deficient number, since it is larger than the sum of its proper divisors (1).

12585161 is an equidigital number, since it uses as much as digits as its factorization.

12585161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 29.

The square root of 12585161 is about 3547.5570467577. The cubic root of 12585161 is about 232.6052924253.

The spelling of 12585161 in words is "twelve million, five hundred eighty-five thousand, one hundred sixty-one".