12523107 has 4 divisors (see below), whose sum is σ = 16697480. Its totient is φ = 8348736.

The previous prime is 12523097. The next prime is 12523111. The reversal of 12523107 is 70132521.

12523107 is digitally balanced in base 3, 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 is not a de Polignac number, because 12523107 - 2²⁰ = 11474531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12523177) 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, 2087182 + ... + 2087187.

It is an arithmetic number, because the mean of its divisors is an integer number (4174370).

Almost surely, 2^12523107 is an apocalyptic number.

12523107 is a deficient number, since it is larger than the sum of its proper divisors (4174373).

12523107 is an equidigital number, since it uses as much as digits as its factorization.

12523107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4174372.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 12523107 is about 3538.8002204137. The cubic root of 12523107 is about 232.2223579113. Note that the first 3 decimals are identical.

Adding to 12523107 its reverse (70132521), we get a palindrome (82655628).

It can be divided in two parts, 125 and 23107, that added together give a palindrome (23232).

The spelling of 12523107 in words is "twelve million, five hundred twenty-three thousand, one hundred seven".