13424503 has 4 divisors (see below), whose sum is σ = 13586328. Its totient is φ = 13262680.

The previous prime is 13424491. The next prime is 13424539. The reversal of 13424503 is 30542431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30542431 = 113 ⋅270287.

It is a cyclic number.

It is not a de Polignac number, because 13424503 - 2¹⁷ = 13293431 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 (13424573) 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, 80788 + ... + 80953.

It is an arithmetic number, because the mean of its divisors is an integer number (3396582).

Almost surely, 2^13424503 is an apocalyptic number.

13424503 is a deficient number, since it is larger than the sum of its proper divisors (161825).

13424503 is an equidigital number, since it uses as much as digits as its factorization.

13424503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161824.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 13424503 is about 3663.9463696948. The cubic root of 13424503 is about 237.6654610621.

Adding to 13424503 its reverse (30542431), we get a palindrome (43966934).

It can be divided in two parts, 1342 and 4503, that multiplied together give a triangular number (6043026 = T₃₄₇₆).

The spelling of 13424503 in words is "thirteen million, four hundred twenty-four thousand, five hundred three".