13115826 has 24 divisors (see below), whose sum is σ = 28763280. Its totient is φ = 4318776.

The previous prime is 13115813. The next prime is 13115827. The reversal of 13115826 is 62851131.

It is a self number, because there is not a number n which added to its sum of digits gives 13115826.

It is not an unprimeable number, because it can be changed into a prime (13115827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2896 + ... + 5883.

It is an arithmetic number, because the mean of its divisors is an integer number (1198470).

Almost surely, 2^13115826 is an apocalyptic number.

13115826 is an abundant number, since it is smaller than the sum of its proper divisors (15647454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13115826 is a wasteful number, since it uses less digits than its factorization.

13115826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8870 (or 8867 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 13115826 is about 3621.5778329341. The cubic root of 13115826 is about 235.8297273176.

Adding to 13115826 its reverse (62851131), we get a palindrome (75966957).

The spelling of 13115826 in words is "thirteen million, one hundred fifteen thousand, eight hundred twenty-six".