84020159 has 2 divisors, whose sum is σ = 84020160. Its totient is φ = 84020158.

The previous prime is 84020149. The next prime is 84020197. The reversal of 84020159 is 95102048.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84020159 - 2¹² = 84016063 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84020129) 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 as a sum of consecutive naturals, namely, 42010079 + 42010080.

It is an arithmetic number, because the mean of its divisors is an integer number (42010080).

Almost surely, 2^84020159 is an apocalyptic number.

84020159 is a deficient number, since it is larger than the sum of its proper divisors (1).

84020159 is an equidigital number, since it uses as much as digits as its factorization.

84020159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 84020159 is about 9166.2510875494. The cubic root of 84020159 is about 437.9869456018.

The spelling of 84020159 in words is "eighty-four million, twenty thousand, one hundred fifty-nine".