13118564 has 6 divisors (see below), whose sum is σ = 22957494. Its totient is φ = 6559280.

The previous prime is 13118563. The next prime is 13118597. The reversal of 13118564 is 46581131.

It can be written as a sum of positive squares in only one way, i.e., 11505664 + 1612900 = 3392^2 + 1270^2 .

It is not an unprimeable number, because it can be changed into a prime (13118563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1639817 + ... + 1639824.

It is an arithmetic number, because the mean of its divisors is an integer number (3826249).

Almost surely, 2^13118564 is an apocalyptic number.

It is an amenable number.

13118564 is a deficient number, since it is larger than the sum of its proper divisors (9838930).

13118564 is a wasteful number, since it uses less digits than its factorization.

13118564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279645 (or 3279643 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 13118564 is about 3621.9558252414. The cubic root of 13118564 is about 235.8461364218.

Adding to 13118564 its reverse (46581131), we get a palindrome (59699695).

The spelling of 13118564 in words is "thirteen million, one hundred eighteen thousand, five hundred sixty-four".