801841121 has 4 divisors (see below), whose sum is σ = 809780244. Its totient is φ = 793902000.

The previous prime is 801841109. The next prime is 801841123. The reversal of 801841121 is 121148108.

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

It can be written as a sum of positive squares in 2 ways, for example, as 639533521 + 162307600 = 25289^2 + 12740^2 .

It is a cyclic number.

It is not a de Polignac number, because 801841121 - 2¹⁰ = 801840097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801841123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3969410 + ... + 3969611.

It is an arithmetic number, because the mean of its divisors is an integer number (202445061).

Almost surely, 2^801841121 is an apocalyptic number.

It is an amenable number.

801841121 is a deficient number, since it is larger than the sum of its proper divisors (7939123).

801841121 is a wasteful number, since it uses less digits than its factorization.

801841121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7939122.

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 801841121 is about 28316.7992718104. The cubic root of 801841121 is about 929.0293649999.

Adding to 801841121 its reverse (121148108), we get a palindrome (922989229).

The spelling of 801841121 in words is "eight hundred one million, eight hundred forty-one thousand, one hundred twenty-one".