801002081 has 16 divisors (see below), whose sum is σ = 883353600. Its totient is φ = 720276480.

The previous prime is 801002053. The next prime is 801002099. The reversal of 801002081 is 180200108.

It is not a de Polignac number, because 801002081 - 2²⁶ = 733893217 is a prime.

It is a super-2 number, since 2×801002081² = 1283208667532661122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801002681) 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 15 ways as a sum of consecutive naturals, for example, 626615 + ... + 627891.

It is an arithmetic number, because the mean of its divisors is an integer number (55209600).

Almost surely, 2^801002081 is an apocalyptic number.

It is an amenable number.

801002081 is a deficient number, since it is larger than the sum of its proper divisors (82351519).

801002081 is a wasteful number, since it uses less digits than its factorization.

801002081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 801002081 is about 28301.9801604057. The cubic root of 801002081 is about 928.7052089957.

Adding to 801002081 its reverse (180200108), we get a palindrome (981202189).

The spelling of 801002081 in words is "eight hundred one million, two thousand, eighty-one".