13135238 has 8 divisors (see below), whose sum is σ = 19718640. Its totient is φ = 6562360.

The previous prime is 13135217. The next prime is 13135247. The reversal of 13135238 is 83253131.

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

It is a congruent number.

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, 2468 + ... + 5688.

It is an arithmetic number, because the mean of its divisors is an integer number (2464830).

Almost surely, 2^13135238 is an apocalyptic number.

13135238 is a deficient number, since it is larger than the sum of its proper divisors (6583402).

13135238 is a wasteful number, since it uses less digits than its factorization.

13135238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5262.

The product of its digits is 2160, while the sum is 26.

The square root of 13135238 is about 3624.2568893499. The cubic root of 13135238 is about 235.9460160925.

Adding to 13135238 its reverse (83253131), we get a palindrome (96388369).

The spelling of 13135238 in words is "thirteen million, one hundred thirty-five thousand, two hundred thirty-eight".