12652005 has 32 divisors (see below), whose sum is σ = 21565440. Its totient is φ = 6315840.

The previous prime is 12651997. The next prime is 12652007. The reversal of 12652005 is 50025621.

12652005 is nontrivially palindromic in base 7.

It is not a de Polignac number, because 12652005 - 2³ = 12651997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12652007) 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, 29140 + ... + 29570.

It is an arithmetic number, because the mean of its divisors is an integer number (673920).

Almost surely, 2^12652005 is an apocalyptic number.

12652005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12652005 is a deficient number, since it is larger than the sum of its proper divisors (8913435).

12652005 is a wasteful number, since it uses less digits than its factorization.

12652005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 12652005 is about 3556.9657012684. The cubic root of 12652005 is about 233.0163803130.

Adding to 12652005 its reverse (50025621), we get a palindrome (62677626).

The spelling of 12652005 in words is "twelve million, six hundred fifty-two thousand, five".