13544242 has 4 divisors (see below), whose sum is σ = 20316366. Its totient is φ = 6772120.

The previous prime is 13544197. The next prime is 13544243. The reversal of 13544242 is 24244531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24244531 = 883 ⋅27457.

It can be written as a sum of positive squares in only one way, i.e., 9054081 + 4490161 = 3009^2 + 2119^2 .

It is not an unprimeable number, because it can be changed into a prime (13544243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3386059 + ... + 3386062.

Almost surely, 2^13544242 is an apocalyptic number.

13544242 is a deficient number, since it is larger than the sum of its proper divisors (6772124).

13544242 is an equidigital number, since it uses as much as digits as its factorization.

13544242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6772123.

The product of its digits is 3840, while the sum is 25.

The square root of 13544242 is about 3680.2502632294. The cubic root of 13544242 is about 238.3699845287.

Adding to 13544242 its reverse (24244531), we get a palindrome (37788773).

The spelling of 13544242 in words is "thirteen million, five hundred forty-four thousand, two hundred forty-two".