80181 has 12 divisors (see below), whose sum is σ = 118560. Its totient is φ = 52200.

The previous prime is 80177. The next prime is 80191. The reversal of 80181 is 18108.

It is a happy number.

It is not a de Polignac number, because 80181 - 2² = 80177 is a prime.

It is a super-2 number, since 2×80181² = 12857985522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 456 + ... + 606.

It is an arithmetic number, because the mean of its divisors is an integer number (9880).

2⁸⁰¹⁸¹ is an apocalyptic number.

It is an amenable number.

80181 is a deficient number, since it is larger than the sum of its proper divisors (38379).

80181 is a wasteful number, since it uses less digits than its factorization.

80181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 80181 is about 283.1624975169. The cubic root of 80181 is about 43.1211653805.

Adding to 80181 its reverse (18108), we get a palindrome (98289).

The spelling of 80181 in words is "eighty thousand, one hundred eighty-one".