80285139 has 12 divisors (see below), whose sum is σ = 126510072. Its totient is φ = 48657600.

The previous prime is 80285123. The next prime is 80285141. The reversal of 80285139 is 93158208.

It is not a de Polignac number, because 80285139 - 2⁴ = 80285123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80285159) 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 11 ways as a sum of consecutive naturals, for example, 405382 + ... + 405579.

It is an arithmetic number, because the mean of its divisors is an integer number (10542506).

Almost surely, 2^80285139 is an apocalyptic number.

80285139 is a deficient number, since it is larger than the sum of its proper divisors (46224933).

80285139 is a wasteful number, since it uses less digits than its factorization.

80285139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810978 (or 810975 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 80285139 is about 8960.1974866629. The cubic root of 80285139 is about 431.3982587913.

The spelling of 80285139 in words is "eighty million, two hundred eighty-five thousand, one hundred thirty-nine".