13442523 has 4 divisors (see below), whose sum is σ = 17923368. Its totient is φ = 8961680.

The previous prime is 13442483. The next prime is 13442537. The reversal of 13442523 is 32524431.

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 13442523 - 2¹³ = 13434331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13442493 and 13442502.

It is not an unprimeable number, because it can be changed into a prime (13442323) 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, 2240418 + ... + 2240423.

It is an arithmetic number, because the mean of its divisors is an integer number (4480842).

Almost surely, 2^13442523 is an apocalyptic number.

13442523 is a deficient number, since it is larger than the sum of its proper divisors (4480845).

13442523 is an equidigital number, since it uses as much as digits as its factorization.

13442523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4480844.

The product of its digits is 2880, while the sum is 24.

The square root of 13442523 is about 3666.4046421529. The cubic root of 13442523 is about 237.7717546748.

Adding to 13442523 its reverse (32524431), we get a palindrome (45966954).

The spelling of 13442523 in words is "thirteen million, four hundred forty-two thousand, five hundred twenty-three".