13427503 has 4 divisors (see below), whose sum is σ = 13647688. Its totient is φ = 13207320.

The previous prime is 13427483. The next prime is 13427527. The reversal of 13427503 is 30572431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30572431 = 317 ⋅96443.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13427503 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 (13427543) 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, 110001 + ... + 110122.

It is an arithmetic number, because the mean of its divisors is an integer number (3411922).

Almost surely, 2^13427503 is an apocalyptic number.

13427503 is a deficient number, since it is larger than the sum of its proper divisors (220185).

13427503 is an equidigital number, since it uses as much as digits as its factorization.

13427503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220184.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 13427503 is about 3664.3557414640. The cubic root of 13427503 is about 237.6831635990.

Adding to 13427503 its reverse (30572431), we get a palindrome (43999934).

The spelling of 13427503 in words is "thirteen million, four hundred twenty-seven thousand, five hundred three".