8020181 has 8 divisors (see below), whose sum is σ = 8660064. Its totient is φ = 7383600.

The previous prime is 8020151. The next prime is 8020183. The reversal of 8020181 is 1810208.

8020181 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8020181 is a prime.

It is a super-2 number, since 2×8020181² = 128646606545522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8020183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7106 + ... + 8156.

It is an arithmetic number, because the mean of its divisors is an integer number (1082508).

Almost surely, 2^8020181 is an apocalyptic number.

It is an amenable number.

8020181 is a deficient number, since it is larger than the sum of its proper divisors (639883).

8020181 is a wasteful number, since it uses less digits than its factorization.

8020181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651.

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

The square root of 8020181 is about 2831.9924081819. The cubic root of 8020181 is about 200.1680337837.

Adding to 8020181 its reverse (1810208), we get a palindrome (9830389).

The spelling of 8020181 in words is "eight million, twenty thousand, one hundred eighty-one".