80005147 has 4 divisors (see below), whose sum is σ = 80782000. Its totient is φ = 79228296.

The previous prime is 80005097. The next prime is 80005151. The reversal of 80005147 is 74150008.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80005147 - 2¹⁵ = 79972379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80005187) 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, 388272 + ... + 388477.

It is an arithmetic number, because the mean of its divisors is an integer number (20195500).

Almost surely, 2^80005147 is an apocalyptic number.

80005147 is a deficient number, since it is larger than the sum of its proper divisors (776853).

80005147 is a wasteful number, since it uses less digits than its factorization.

80005147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776852.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 80005147 is about 8944.5596314184. The cubic root of 80005147 is about 430.8961785377.

The spelling of 80005147 in words is "eighty million, five thousand, one hundred forty-seven".