13018625 has 8 divisors (see below), whose sum is σ = 16247400. Its totient is φ = 10414800.

The previous prime is 13018619. The next prime is 13018627. The reversal of 13018625 is 52681031.

It can be written as a sum of positive squares in 4 ways, for example, as 961 + 13017664 = 31^2 + 3608^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13018625 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13018594 and 13018603.

It is not an unprimeable number, because it can be changed into a prime (13018627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51950 + ... + 52199.

It is an arithmetic number, because the mean of its divisors is an integer number (2030925).

Almost surely, 2^13018625 is an apocalyptic number.

It is an amenable number.

13018625 is a deficient number, since it is larger than the sum of its proper divisors (3228775).

13018625 is an equidigital number, since it uses as much as digits as its factorization.

13018625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104164 (or 104154 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 13018625 is about 3608.1331738172. The cubic root of 13018625 is about 235.2457064924.

Adding to 13018625 its reverse (52681031), we get a palindrome (65699656).

The spelling of 13018625 in words is "thirteen million, eighteen thousand, six hundred twenty-five".