12516107 has 4 divisors (see below), whose sum is σ = 12523896. Its totient is φ = 12508320.

The previous prime is 12516073. The next prime is 12516121. The reversal of 12516107 is 70161521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 70161521 = 631 ⋅111191.

It is a cyclic number.

It is not a de Polignac number, because 12516107 - 2⁶ = 12516043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12516137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494 + ... + 5027.

It is an arithmetic number, because the mean of its divisors is an integer number (3130974).

Almost surely, 2^12516107 is an apocalyptic number.

12516107 is a deficient number, since it is larger than the sum of its proper divisors (7789).

12516107 is an equidigital number, since it uses as much as digits as its factorization.

12516107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7788.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 12516107 is about 3537.8110463958. The cubic root of 12516107 is about 232.1790816573.

Adding to 12516107 its reverse (70161521), we get a palindrome (82677628).

The spelling of 12516107 in words is "twelve million, five hundred sixteen thousand, one hundred seven".