813600201 has 4 divisors (see below), whose sum is σ = 1084800272. Its totient is φ = 542400132.

The previous prime is 813600173. The next prime is 813600209. The reversal of 813600201 is 102006318.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 813600201 - 2⁵ = 813600169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (813600209) 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, 135600031 + ... + 135600036.

It is an arithmetic number, because the mean of its divisors is an integer number (271200068).

Almost surely, 2^813600201 is an apocalyptic number.

It is an amenable number.

813600201 is a deficient number, since it is larger than the sum of its proper divisors (271200071).

813600201 is a wasteful number, since it uses less digits than its factorization.

813600201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271200070.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 813600201 is about 28523.6779010001. The cubic root of 813600201 is about 933.5487800111.

Adding to 813600201 its reverse (102006318), we get a palindrome (915606519).

The spelling of 813600201 in words is "eight hundred thirteen million, six hundred thousand, two hundred one".