13500068 has 6 divisors (see below), whose sum is σ = 23625126. Its totient is φ = 6750032.

The previous prime is 13500061. The next prime is 13500077. The reversal of 13500068 is 86000531.

It can be written as a sum of positive squares in only one way, i.e., 7139584 + 6360484 = 2672^2 + 2522^2 .

It is not an unprimeable number, because it can be changed into a prime (13500061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1687505 + ... + 1687512.

It is an arithmetic number, because the mean of its divisors is an integer number (3937521).

Almost surely, 2^13500068 is an apocalyptic number.

It is an amenable number.

13500068 is a deficient number, since it is larger than the sum of its proper divisors (10125058).

13500068 is a wasteful number, since it uses less digits than its factorization.

13500068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3375021 (or 3375019 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 13500068 is about 3674.2438677910. The cubic root of 13500068 is about 238.1105575845.

Adding to 13500068 its reverse (86000531), we get a palindrome (99500599).

The spelling of 13500068 in words is "thirteen million, five hundred thousand, sixty-eight".