8081111 has 16 divisors (see below), whose sum is σ = 8812800. Its totient is φ = 7392000.

The previous prime is 8081093. The next prime is 8081113. The reversal of 8081111 is 1111808.

8081111 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8081111 is a prime.

It is a Duffinian number.

8081111 is a modest number, since divided by 1111 gives 808 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081113) 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, 79961 + ... + 80061.

It is an arithmetic number, because the mean of its divisors is an integer number (550800).

Almost surely, 2^8081111 is an apocalyptic number.

8081111 is a deficient number, since it is larger than the sum of its proper divisors (731689).

8081111 is a wasteful number, since it uses less digits than its factorization.

8081111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250.

The product of its (nonzero) digits is 64, while the sum is 20.

The square root of 8081111 is about 2842.7294982112. The cubic root of 8081111 is about 200.6736534078.

Adding to 8081111 its reverse (1111808), we get a palindrome (9192919).

It can be divided in two parts, 8081 and 111, that added together give a 13-th power (8192 = 2¹³).

The spelling of 8081111 in words is "eight million, eighty-one thousand, one hundred eleven".