80272169 has 4 divisors (see below), whose sum is σ = 84497040. Its totient is φ = 76047300.

The previous prime is 80272133. The next prime is 80272183. The reversal of 80272169 is 96127208.

It is a happy number.

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 80272169 - 2¹² = 80268073 is a prime.

It is a super-2 number, since 2×80272169² = 12887242231929122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80272109) 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 in 3 ways as a sum of consecutive naturals, for example, 2112407 + ... + 2112444.

It is an arithmetic number, because the mean of its divisors is an integer number (21124260).

Almost surely, 2^80272169 is an apocalyptic number.

It is an amenable number.

80272169 is a deficient number, since it is larger than the sum of its proper divisors (4224871).

80272169 is a wasteful number, since it uses less digits than its factorization.

80272169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4224870.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 80272169 is about 8959.4737010608. The cubic root of 80272169 is about 431.3750268590.

The spelling of 80272169 in words is "eighty million, two hundred seventy-two thousand, one hundred sixty-nine".