80169 has 4 divisors (see below), whose sum is σ = 106896. Its totient is φ = 53444.

The previous prime is 80167. The next prime is 80173. The reversal of 80169 is 96108.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80169 - 2¹ = 80167 is a prime.

It is a super-2 number, since 2×80169² = 12854137122, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (80167) 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, 13359 + ... + 13364.

It is an arithmetic number, because the mean of its divisors is an integer number (26724).

2⁸⁰¹⁶⁹ is an apocalyptic number.

It is an amenable number.

80169 is a deficient number, since it is larger than the sum of its proper divisors (26727).

80169 is a wasteful number, since it uses less digits than its factorization.

80169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26726.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 80169 is about 283.1413074774. The cubic root of 80169 is about 43.1190140820.

Adding to 80169 its product of nonzero digits (432), we get a triangular number (80601 = T₄₀₁).

The spelling of 80169 in words is "eighty thousand, one hundred sixty-nine".