13524242 has 4 divisors (see below), whose sum is σ = 20286366. Its totient is φ = 6762120.

The previous prime is 13524233. The next prime is 13524263. The reversal of 13524242 is 24242531.

It is a happy number.

13524242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24242531 = 97 ⋅249923.

It can be written as a sum of positive squares in only one way, i.e., 10896601 + 2627641 = 3301^2 + 1621^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3381059 + ... + 3381062.

Almost surely, 2^13524242 is an apocalyptic number.

13524242 is a deficient number, since it is larger than the sum of its proper divisors (6762124).

13524242 is an equidigital number, since it uses as much as digits as its factorization.

13524242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6762123.

The product of its digits is 1920, while the sum is 23.

The square root of 13524242 is about 3677.5320528855. The cubic root of 13524242 is about 238.2525976667.

Adding to 13524242 its reverse (24242531), we get a palindrome (37766773).

The spelling of 13524242 in words is "thirteen million, five hundred twenty-four thousand, two hundred forty-two".