13523018 has 8 divisors (see below), whose sum is σ = 20331648. Its totient is φ = 6745804.

The previous prime is 13523017. The next prime is 13523033. The reversal of 13523018 is 81032531.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13522984 and 13523002.

It is not an unprimeable number, because it can be changed into a prime (13523017) by changing a digit.

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, 6746 + ... + 8517.

It is an arithmetic number, because the mean of its divisors is an integer number (2541456).

Almost surely, 2^13523018 is an apocalyptic number.

13523018 is a deficient number, since it is larger than the sum of its proper divisors (6808630).

13523018 is a wasteful number, since it uses less digits than its factorization.

13523018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15708.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 13523018 is about 3677.3656331673. The cubic root of 13523018 is about 238.2454098337.

Adding to 13523018 its reverse (81032531), we get a palindrome (94555549).

The spelling of 13523018 in words is "thirteen million, five hundred twenty-three thousand, eighteen".