201200855 has 4 divisors (see below), whose sum is σ = 241441032. Its totient is φ = 160960680.

The previous prime is 201200837. The next prime is 201200873. The reversal of 201200855 is 558002102.

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

It is an interprime number because it is at equal distance from previous prime (201200837) and next prime (201200873).

It is a de Polignac number, because none of the positive numbers 2^k-201200855 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201200855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20120081 + ... + 20120090.

It is an arithmetic number, because the mean of its divisors is an integer number (60360258).

Almost surely, 2^201200855 is an apocalyptic number.

201200855 is a deficient number, since it is larger than the sum of its proper divisors (40240177).

201200855 is an equidigital number, since it uses as much as digits as its factorization.

201200855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40240176.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 201200855 is about 14184.5287197002. The cubic root of 201200855 is about 585.9716533171.

Adding to 201200855 its reverse (558002102), we get a palindrome (759202957).

The spelling of 201200855 in words is "two hundred one million, two hundred thousand, eight hundred fifty-five".