80081173 has 2 divisors, whose sum is σ = 80081174. Its totient is φ = 80081172.

The previous prime is 80081171. The next prime is 80081207. The reversal of 80081173 is 37118008.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49533444 + 30547729 = 7038^2 + 5527^2 .

It is a cyclic number.

It is not a de Polignac number, because 80081173 - 2¹ = 80081171 is a prime.

Together with 80081171, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80081171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40040586 + 40040587.

It is an arithmetic number, because the mean of its divisors is an integer number (40040587).

Almost surely, 2^80081173 is an apocalyptic number.

It is an amenable number.

80081173 is a deficient number, since it is larger than the sum of its proper divisors (1).

80081173 is an equidigital number, since it uses as much as digits as its factorization.

80081173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 80081173 is about 8948.8084681705. The cubic root of 80081173 is about 431.0326236828.

The spelling of 80081173 in words is "eighty million, eighty-one thousand, one hundred seventy-three".