80181143 has 8 divisors (see below), whose sum is σ = 94795680. Its totient is φ = 66356640.

The previous prime is 80181139. The next prime is 80181149. The reversal of 80181143 is 34118108.

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

It is not a de Polignac number, because 80181143 - 2² = 80181139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80181149) 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 7 ways as a sum of consecutive naturals, for example, 197288 + ... + 197693.

It is an arithmetic number, because the mean of its divisors is an integer number (11849460).

Almost surely, 2^80181143 is an apocalyptic number.

80181143 is a deficient number, since it is larger than the sum of its proper divisors (14614537).

80181143 is a wasteful number, since it uses less digits than its factorization.

80181143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395017.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 80181143 is about 8954.3923858629. The cubic root of 80181143 is about 431.2119101554.

The spelling of 80181143 in words is "eighty million, one hundred eighty-one thousand, one hundred forty-three".