12645106 has 4 divisors (see below), whose sum is σ = 18967662. Its totient is φ = 6322552.

The previous prime is 12645103. The next prime is 12645107. The reversal of 12645106 is 60154621.

12645106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9054081 + 3591025 = 3009^2 + 1895^2 .

It is not an unprimeable number, because it can be changed into a prime (12645103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3161275 + ... + 3161278.

Almost surely, 2^12645106 is an apocalyptic number.

12645106 is a deficient number, since it is larger than the sum of its proper divisors (6322556).

12645106 is an equidigital number, since it uses as much as digits as its factorization.

12645106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6322555.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 12645106 is about 3555.9957817748. The cubic root of 12645106 is about 232.9740188508.

Adding to 12645106 its reverse (60154621), we get a palindrome (72799727).

The spelling of 12645106 in words is "twelve million, six hundred forty-five thousand, one hundred six".