80804181 has 8 divisors (see below), whose sum is σ = 110244640. Its totient is φ = 52616592.

The previous prime is 80804173. The next prime is 80804183. The reversal of 80804181 is 18140808.

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

It is not a de Polignac number, because 80804181 - 2³ = 80804173 is a prime.

It is a super-2 number, since 2×80804181² = 13058631334161522, 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 (80804183) 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, 313066 + ... + 313323.

It is an arithmetic number, because the mean of its divisors is an integer number (13780580).

Almost surely, 2^80804181 is an apocalyptic number.

It is an amenable number.

80804181 is a deficient number, since it is larger than the sum of its proper divisors (29440459).

80804181 is a wasteful number, since it uses less digits than its factorization.

80804181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626435.

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 80804181 is about 8989.1145837619. The cubic root of 80804181 is about 432.3259232406.

Adding to 80804181 its reverse (18140808), we get a palindrome (98944989).

The spelling of 80804181 in words is "eighty million, eight hundred four thousand, one hundred eighty-one".