800135911 has 8 divisors (see below), whose sum is σ = 808335360. Its totient is φ = 791977368.

The previous prime is 800135893. The next prime is 800135929. The reversal of 800135911 is 119531008.

It is an interprime number because it is at equal distance from previous prime (800135893) and next prime (800135929).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 800135911 - 2⁵ = 800135879 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 800135911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800135981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29890 + ... + 49936.

It is an arithmetic number, because the mean of its divisors is an integer number (101041920).

Almost surely, 2^800135911 is an apocalyptic number.

800135911 is a deficient number, since it is larger than the sum of its proper divisors (8199449).

800135911 is a wasteful number, since it uses less digits than its factorization.

800135911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20453.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 800135911 is about 28286.6737351708. The cubic root of 800135911 is about 928.3703339941.

Adding to 800135911 its reverse (119531008), we get a palindrome (919666919).

The spelling of 800135911 in words is "eight hundred million, one hundred thirty-five thousand, nine hundred eleven".