13386503 has 4 divisors (see below), whose sum is σ = 14416248. Its totient is φ = 12356760.

The previous prime is 13386481. The next prime is 13386509. The reversal of 13386503 is 30568331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30568331 = 3779 ⋅8089.

It is a de Polignac number, because none of the positive numbers 2^k-13386503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13386509) 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, 514853 + ... + 514878.

It is an arithmetic number, because the mean of its divisors is an integer number (3604062).

Almost surely, 2^13386503 is an apocalyptic number.

13386503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13386503 is a deficient number, since it is larger than the sum of its proper divisors (1029745).

13386503 is a wasteful number, since it uses less digits than its factorization.

13386503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029744.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 13386503 is about 3658.7570293749. The cubic root of 13386503 is about 237.4410003030.

The spelling of 13386503 in words is "thirteen million, three hundred eighty-six thousand, five hundred three".