13603073 has 4 divisors (see below), whose sum is σ = 14839728. Its totient is φ = 12366420.

The previous prime is 13603067. The next prime is 13603129. The reversal of 13603073 is 37030631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-13603073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13603003) 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, 618311 + ... + 618332.

It is an arithmetic number, because the mean of its divisors is an integer number (3709932).

Almost surely, 2^13603073 is an apocalyptic number.

It is an amenable number.

13603073 is a deficient number, since it is larger than the sum of its proper divisors (1236655).

13603073 is a wasteful number, since it uses less digits than its factorization.

13603073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236654.

The product of its (nonzero) digits is 1134, while the sum is 23.

The square root of 13603073 is about 3688.2344014447. The cubic root of 13603073 is about 238.7146153347.

The spelling of 13603073 in words is "thirteen million, six hundred three thousand, seventy-three".