12505106 has 8 divisors (see below), whose sum is σ = 18831420. Its totient is φ = 6227968.

The previous prime is 12505093. The next prime is 12505111. The reversal of 12505106 is 60150521.

It can be written as a sum of positive squares in 2 ways, for example, as 9665881 + 2839225 = 3109^2 + 1685^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11651 + ... + 12678.

Almost surely, 2^12505106 is an apocalyptic number.

12505106 is a deficient number, since it is larger than the sum of its proper divisors (6326314).

12505106 is a wasteful number, since it uses less digits than its factorization.

12505106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24588.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 12505106 is about 3536.2559296522. The cubic root of 12505106 is about 232.1110373157. Note that the first 3 decimals are identical.

Adding to 12505106 its reverse (60150521), we get a palindrome (72655627).

The spelling of 12505106 in words is "twelve million, five hundred five thousand, one hundred six".