12590066 has 4 divisors (see below), whose sum is σ = 18885102. Its totient is φ = 6295032.

The previous prime is 12590063. The next prime is 12590077. The reversal of 12590066 is 66009521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66009521 = 17 ⋅3882913.

It can be written as a sum of positive squares in only one way, i.e., 10699441 + 1890625 = 3271^2 + 1375^2 .

It is not an unprimeable number, because it can be changed into a prime (12590063) 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 as a sum of consecutive naturals, namely, 3147515 + ... + 3147518.

Almost surely, 2^12590066 is an apocalyptic number.

12590066 is a deficient number, since it is larger than the sum of its proper divisors (6295036).

12590066 is an equidigital number, since it uses as much as digits as its factorization.

12590066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6295035.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 12590066 is about 3548.2483002180. The cubic root of 12590066 is about 232.6355073949.

Adding to 12590066 its reverse (66009521), we get a palindrome (78599587).

The spelling of 12590066 in words is "twelve million, five hundred ninety thousand, sixty-six".