12523018 has 8 divisors (see below), whose sum is σ = 18820512. Its totient is φ = 6249516.

The previous prime is 12522973. The next prime is 12523073. The reversal of 12523018 is 81032521.

12523018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12523018.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4630 + ... + 6817.

It is an arithmetic number, because the mean of its divisors is an integer number (2352564).

Almost surely, 2^12523018 is an apocalyptic number.

12523018 is a deficient number, since it is larger than the sum of its proper divisors (6297494).

12523018 is a wasteful number, since it uses less digits than its factorization.

12523018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11996.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 12523018 is about 3538.7876455080. The cubic root of 12523018 is about 232.2218077858.

Adding to 12523018 its reverse (81032521), we get a palindrome (93555539).

The spelling of 12523018 in words is "twelve million, five hundred twenty-three thousand, eighteen".