181080043 has 4 divisors (see below), whose sum is σ = 181310920. Its totient is φ = 180849168.

The previous prime is 181080041. The next prime is 181080047. The reversal of 181080043 is 340080181.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340080181 = 7 ⋅48582883.

It is a cyclic number.

It is not a de Polignac number, because 181080043 - 2¹ = 181080041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (181080041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114258 + ... + 115831.

It is an arithmetic number, because the mean of its divisors is an integer number (45327730).

Almost surely, 2^181080043 is an apocalyptic number.

181080043 is a deficient number, since it is larger than the sum of its proper divisors (230877).

181080043 is an equidigital number, since it uses as much as digits as its factorization.

181080043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230876.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 181080043 is about 13456.5984929328. The cubic root of 181080043 is about 565.7486543568.

The spelling of 181080043 in words is "one hundred eighty-one million, eighty thousand, forty-three".