800400151 has 4 divisors (see below), whose sum is σ = 819014152. Its totient is φ = 781786152.

The previous prime is 800400109. The next prime is 800400163. The reversal of 800400151 is 151004008.

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

It is a cyclic number.

It is not a de Polignac number, because 800400151 - 2¹⁷ = 800269079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800400451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9306936 + ... + 9307021.

It is an arithmetic number, because the mean of its divisors is an integer number (204753538).

Almost surely, 2^800400151 is an apocalyptic number.

800400151 is a deficient number, since it is larger than the sum of its proper divisors (18614001).

800400151 is a wasteful number, since it uses less digits than its factorization.

800400151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18614000.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 800400151 is about 28291.3441002721. The cubic root of 800400151 is about 928.4725189581.

Adding to 800400151 its reverse (151004008), we get a palindrome (951404159).

The spelling of 800400151 in words is "eight hundred million, four hundred thousand, one hundred fifty-one".