13118864 has 40 divisors (see below), whose sum is σ = 27989280. Its totient is φ = 5907200.

The previous prime is 13118857. The next prime is 13118881. The reversal of 13118864 is 46881131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13118864.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22772 + ... + 23340.

It is an arithmetic number, because the mean of its divisors is an integer number (699732).

Almost surely, 2^13118864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13118864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13994640).

13118864 is an abundant number, since it is smaller than the sum of its proper divisors (14870416).

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

13118864 is a wasteful number, since it uses less digits than its factorization.

13118864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719 (or 713 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 13118864 is about 3621.9972390934. The cubic root of 13118864 is about 235.8479342126.

Adding to 13118864 its reverse (46881131), we get a palindrome (59999995).

It can be divided in two parts, 131 and 18864, that multiplied together give a square (2471184 = 1572²).

The spelling of 13118864 in words is "thirteen million, one hundred eighteen thousand, eight hundred sixty-four".