80120317 has 2 divisors, whose sum is σ = 80120318. Its totient is φ = 80120316.

The previous prime is 80120297. The next prime is 80120329. The reversal of 80120317 is 71302108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80030916 + 89401 = 8946^2 + 299^2 .

It is a cyclic number.

It is not a de Polignac number, because 80120317 - 2⁷ = 80120189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80120357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40060158 + 40060159.

It is an arithmetic number, because the mean of its divisors is an integer number (40060159).

Almost surely, 2^80120317 is an apocalyptic number.

It is an amenable number.

80120317 is a deficient number, since it is larger than the sum of its proper divisors (1).

80120317 is an equidigital number, since it uses as much as digits as its factorization.

80120317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 80120317 is about 8950.9953077856. The cubic root of 80120317 is about 431.1028424040.

The spelling of 80120317 in words is "eighty million, one hundred twenty thousand, three hundred seventeen".