80875189 has 4 divisors (see below), whose sum is σ = 81088960. Its totient is φ = 80661420.

The previous prime is 80875169. The next prime is 80875211. The reversal of 80875189 is 98157808.

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 a de Polignac number, because none of the positive numbers 2^k-80875189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80875129) 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, 106317 + ... + 107074.

It is an arithmetic number, because the mean of its divisors is an integer number (20272240).

Almost surely, 2^80875189 is an apocalyptic number.

It is an amenable number.

80875189 is a deficient number, since it is larger than the sum of its proper divisors (213771).

80875189 is a wasteful number, since it uses less digits than its factorization.

80875189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213770.

The product of its (nonzero) digits is 161280, while the sum is 46.

The square root of 80875189 is about 8993.0633824076. The cubic root of 80875189 is about 432.4525239967.

The spelling of 80875189 in words is "eighty million, eight hundred seventy-five thousand, one hundred eighty-nine".