13407523 has 4 divisors (see below), whose sum is σ = 13504120. Its totient is φ = 13310928.

The previous prime is 13407491. The next prime is 13407539. The reversal of 13407523 is 32570431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13407523 - 2⁵ = 13407491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13407323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48090 + ... + 48367.

It is an arithmetic number, because the mean of its divisors is an integer number (3376030).

Almost surely, 2^13407523 is an apocalyptic number.

13407523 is a deficient number, since it is larger than the sum of its proper divisors (96597).

13407523 is an equidigital number, since it uses as much as digits as its factorization.

13407523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96596.

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

The square root of 13407523 is about 3661.6284628564. The cubic root of 13407523 is about 237.5652149627.

Adding to 13407523 its reverse (32570431), we get a palindrome (45977954).

The spelling of 13407523 in words is "thirteen million, four hundred seven thousand, five hundred twenty-three".