13603013 has 4 divisors (see below), whose sum is σ = 13970700. Its totient is φ = 13235328.

The previous prime is 13603003. The next prime is 13603019. The reversal of 13603013 is 31030631.

13603013 is digitally balanced in base 2, 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 can be written as a sum of positive squares in 2 ways, for example, as 7059649 + 6543364 = 2657^2 + 2558^2 .

It is a cyclic number.

It is not a de Polignac number, because 13603013 - 2⁴ = 13602997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13602982 and 13603000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13603019) 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, 183788 + ... + 183861.

It is an arithmetic number, because the mean of its divisors is an integer number (3492675).

Almost surely, 2^13603013 is an apocalyptic number.

It is an amenable number.

13603013 is a deficient number, since it is larger than the sum of its proper divisors (367687).

13603013 is an equidigital number, since it uses as much as digits as its factorization.

13603013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367686.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 13603013 is about 3688.2262674625. The cubic root of 13603013 is about 238.7142643626.

Adding to 13603013 its reverse (31030631), we get a palindrome (44633644).

The spelling of 13603013 in words is "thirteen million, six hundred three thousand, thirteen".