13245523 has 4 divisors (see below), whose sum is σ = 13297320. Its totient is φ = 13193728.

The previous prime is 13245517. The next prime is 13245553. The reversal of 13245523 is 32554231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32554231 = 191 ⋅170441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13245523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13245553) 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, 25513 + ... + 26026.

It is an arithmetic number, because the mean of its divisors is an integer number (3324330).

Almost surely, 2^13245523 is an apocalyptic number.

13245523 is a deficient number, since it is larger than the sum of its proper divisors (51797).

13245523 is an equidigital number, since it uses as much as digits as its factorization.

13245523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51796.

The product of its digits is 3600, while the sum is 25.

The square root of 13245523 is about 3639.4399294397. The cubic root of 13245523 is about 236.6045200397.

Adding to 13245523 its reverse (32554231), we get a palindrome (45799754).

The spelling of 13245523 in words is "thirteen million, two hundred forty-five thousand, five hundred twenty-three".