80208169 has 2 divisors, whose sum is σ = 80208170. Its totient is φ = 80208168.

The previous prime is 80208131. The next prime is 80208181. The reversal of 80208169 is 96180208.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64208169 + 16000000 = 8013^2 + 4000^2 .

It is a cyclic number.

It is not a de Polignac number, because 80208169 - 2¹⁹ = 79683881 is a prime.

It is a super-2 number, since 2×80208169² = 12866700748665122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80208109) 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, 40104084 + 40104085.

It is an arithmetic number, because the mean of its divisors is an integer number (40104085).

Almost surely, 2^80208169 is an apocalyptic number.

It is an amenable number.

80208169 is a deficient number, since it is larger than the sum of its proper divisors (1).

80208169 is an equidigital number, since it uses as much as digits as its factorization.

80208169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 80208169 is about 8955.9013505063. The cubic root of 80208169 is about 431.2603530666.

The spelling of 80208169 in words is "eighty million, two hundred eight thousand, one hundred sixty-nine".