13500006 has 32 divisors (see below), whose sum is σ = 30790368. Its totient is φ = 3909120.

The previous prime is 13499999. The next prime is 13500007. The reversal of 13500006 is 60000531.

13500006 = 280² + 281² + ... + 396².

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13500007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3765 + ... + 6416.

It is an arithmetic number, because the mean of its divisors is an integer number (962199).

Almost surely, 2^13500006 is an apocalyptic number.

13500006 is an abundant number, since it is smaller than the sum of its proper divisors (17290362).

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

13500006 is a wasteful number, since it uses less digits than its factorization.

13500006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10216.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 13500006 is about 3674.2354306713. The cubic root of 13500006 is about 238.1101930708.

Adding to 13500006 its reverse (60000531), we get a palindrome (73500537).

The spelling of 13500006 in words is "thirteen million, five hundred thousand, six".