800135281 has 16 divisors (see below), whose sum is σ = 889170048. Its totient is φ = 713910400.

The previous prime is 800135263. The next prime is 800135299. The reversal of 800135281 is 182531008.

800135281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (800135263) and next prime (800135299).

It is a cyclic number.

It is not a de Polignac number, because 800135281 - 2⁷ = 800135153 is a prime.

It is a super-2 number, since 2×800135281² = 1280432935801897922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (800135081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179775 + ... + 184171.

It is an arithmetic number, because the mean of its divisors is an integer number (55573128).

Almost surely, 2^800135281 is an apocalyptic number.

It is an amenable number.

800135281 is a deficient number, since it is larger than the sum of its proper divisors (89034767).

800135281 is a wasteful number, since it uses less digits than its factorization.

800135281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4712.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 800135281 is about 28286.6625991827. The cubic root of 800135281 is about 928.3700903383.

Adding to 800135281 its reverse (182531008), we get a palindrome (982666289).

The spelling of 800135281 in words is "eight hundred million, one hundred thirty-five thousand, two hundred eighty-one".