80143489 has 4 divisors (see below), whose sum is σ = 80171824. Its totient is φ = 80115156.

The previous prime is 80143487. The next prime is 80143499. The reversal of 80143489 is 98434108.

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 80143489 - 2¹ = 80143487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80143487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9387 + ... + 15760.

It is an arithmetic number, because the mean of its divisors is an integer number (20042956).

Almost surely, 2^80143489 is an apocalyptic number.

It is an amenable number.

80143489 is a deficient number, since it is larger than the sum of its proper divisors (28335).

80143489 is a wasteful number, since it uses less digits than its factorization.

80143489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28334.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 80143489 is about 8952.2895954052. The cubic root of 80143489 is about 431.1443988720.

The spelling of 80143489 in words is "eighty million, one hundred forty-three thousand, four hundred eighty-nine".