13140838 has 8 divisors (see below), whose sum is σ = 20347200. Its totient is φ = 6358440.

The previous prime is 13140833. The next prime is 13140839. The reversal of 13140838 is 83804131.

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

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105913 + ... + 106036.

It is an arithmetic number, because the mean of its divisors is an integer number (2543400).

Almost surely, 2^13140838 is an apocalyptic number.

13140838 is a deficient number, since it is larger than the sum of its proper divisors (7206362).

13140838 is a wasteful number, since it uses less digits than its factorization.

13140838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211982.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 13140838 is about 3625.0293791913. The cubic root of 13140838 is about 235.9795419401.

Adding to 13140838 its reverse (83804131), we get a palindrome (96944969).

The spelling of 13140838 in words is "thirteen million, one hundred forty thousand, eight hundred thirty-eight".