13506242 has 8 divisors (see below), whose sum is σ = 20280396. Its totient is φ = 6746112.

The previous prime is 13506217. The next prime is 13506277. The reversal of 13506242 is 24260531.

It can be written as a sum of positive squares in 2 ways, for example, as 11162281 + 2343961 = 3341^2 + 1531^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 623 + ... + 5234.

Almost surely, 2^13506242 is an apocalyptic number.

13506242 is a deficient number, since it is larger than the sum of its proper divisors (6774154).

13506242 is a wasteful number, since it uses less digits than its factorization.

13506242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7012.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 13506242 is about 3675.0839446195. The cubic root of 13506242 is about 238.1468505012.

Adding to 13506242 its reverse (24260531), we get a palindrome (37766773).

The spelling of 13506242 in words is "thirteen million, five hundred six thousand, two hundred forty-two".