800139511 has 8 divisors (see below), whose sum is σ = 804650400. Its totient is φ = 795637920.

The previous prime is 800139503. The next prime is 800139563. The reversal of 800139511 is 115931008.

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 800139511 - 2³ = 800139503 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 800139511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800139581) 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, 234405 + ... + 237793.

It is an arithmetic number, because the mean of its divisors is an integer number (100581300).

Almost surely, 2^800139511 is an apocalyptic number.

800139511 is a deficient number, since it is larger than the sum of its proper divisors (4510889).

800139511 is a wasteful number, since it uses less digits than its factorization.

800139511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4649.

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

The square root of 800139511 is about 28286.7373693044. The cubic root of 800139511 is about 928.3717263110.

The spelling of 800139511 in words is "eight hundred million, one hundred thirty-nine thousand, five hundred eleven".