80539143 has 4 divisors (see below), whose sum is σ = 107385528. Its totient is φ = 53692760.

The previous prime is 80539139. The next prime is 80539163. The reversal of 80539143 is 34193508.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80539143 - 2² = 80539139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80539103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13423188 + ... + 13423193.

It is an arithmetic number, because the mean of its divisors is an integer number (26846382).

Almost surely, 2^80539143 is an apocalyptic number.

80539143 is a deficient number, since it is larger than the sum of its proper divisors (26846385).

80539143 is a wasteful number, since it uses less digits than its factorization.

80539143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26846384.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 80539143 is about 8974.3603114651. The cubic root of 80539143 is about 431.8527286495.

The spelling of 80539143 in words is "eighty million, five hundred thirty-nine thousand, one hundred forty-three".