80280169 has 2 divisors, whose sum is σ = 80280170. Its totient is φ = 80280168.

The previous prime is 80280163. The next prime is 80280181. The reversal of 80280169 is 96108208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50979600 + 29300569 = 7140^2 + 5413^2 .

It is a cyclic number.

It is not a de Polignac number, because 80280169 - 2²⁵ = 46725737 is a prime.

It is a super-2 number, since 2×80280169² = 12889811069337122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80280163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40140084 + 40140085.

It is an arithmetic number, because the mean of its divisors is an integer number (40140085).

Almost surely, 2^80280169 is an apocalyptic number.

It is an amenable number.

80280169 is a deficient number, since it is larger than the sum of its proper divisors (1).

80280169 is an equidigital number, since it uses as much as digits as its factorization.

80280169 is an evil number, because the sum of its binary digits is even.

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

The square root of 80280169 is about 8959.9201447334. The cubic root of 80280169 is about 431.3893567969.

The spelling of 80280169 in words is "eighty million, two hundred eighty thousand, one hundred sixty-nine".