13800001 has 4 divisors (see below), whose sum is σ = 14173012. Its totient is φ = 13426992.

The previous prime is 13799939. The next prime is 13800013. The reversal of 13800001 is 10000831.

13800001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7924225 + 5875776 = 2815^2 + 2424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13800001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13800071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186450 + ... + 186523.

It is an arithmetic number, because the mean of its divisors is an integer number (3543253).

Almost surely, 2^13800001 is an apocalyptic number.

It is an amenable number.

13800001 is a deficient number, since it is larger than the sum of its proper divisors (373011).

13800001 is an equidigital number, since it uses as much as digits as its factorization.

13800001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373010.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 13800001 is about 3714.8352587968. The cubic root of 13800001 is about 239.8610364517.

Adding to 13800001 its reverse (10000831), we get a palindrome (23800832).

The spelling of 13800001 in words is "thirteen million, eight hundred thousand, one".