8081081 has 4 divisors (see below), whose sum is σ = 8090100. Its totient is φ = 8072064.

The previous prime is 8081077. The next prime is 8081083. The reversal of 8081081 is 1801808.

8081081 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3841600 + 4239481 = 1960^2 + 2059^2 .

It is a cyclic number.

It is not a de Polignac number, because 8081081 - 2² = 8081077 is a prime.

It is a super-2 number, since 2×8081081² = 130607740257122, which contains 22 as substring.

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 8081081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2996 + ... + 5013.

It is an arithmetic number, because the mean of its divisors is an integer number (2022525).

Almost surely, 2^8081081 is an apocalyptic number.

8081081 is the 1520-th centered heptagonal number.

It is an amenable number.

8081081 is a deficient number, since it is larger than the sum of its proper divisors (9019).

8081081 is a wasteful number, since it uses less digits than its factorization.

8081081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9018.

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

The square root of 8081081 is about 2842.7242215875. The cubic root of 8081081 is about 200.6734050832.

Adding to 8081081 its reverse (1801808), we get a palindrome (9882889).

The spelling of 8081081 in words is "eight million, eighty-one thousand, eighty-one".