13140242 has 8 divisors (see below), whose sum is σ = 19894896. Its totient is φ = 6508612.

The previous prime is 13140221. The next prime is 13140271. The reversal of 13140242 is 24204131.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13140242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30488 + ... + 30915.

It is an arithmetic number, because the mean of its divisors is an integer number (2486862).

Almost surely, 2^13140242 is an apocalyptic number.

13140242 is a deficient number, since it is larger than the sum of its proper divisors (6754654).

13140242 is a wasteful number, since it uses less digits than its factorization.

13140242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61512.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 13140242 is about 3624.9471720289. The cubic root of 13140242 is about 235.9759742850.

Adding to 13140242 its reverse (24204131), we get a palindrome (37344373).

The spelling of 13140242 in words is "thirteen million, one hundred forty thousand, two hundred forty-two".