162820159 has 2 divisors, whose sum is σ = 162820160. Its totient is φ = 162820158.

The previous prime is 162820127. The next prime is 162820199. The reversal of 162820159 is 951028261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 162820159 - 2⁵ = 162820127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162820109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81410079 + 81410080.

It is an arithmetic number, because the mean of its divisors is an integer number (81410080).

Almost surely, 2^162820159 is an apocalyptic number.

162820159 is a deficient number, since it is larger than the sum of its proper divisors (1).

162820159 is an equidigital number, since it uses as much as digits as its factorization.

162820159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 162820159 is about 12760.1002739007. The cubic root of 162820159 is about 546.0545851496.

The spelling of 162820159 in words is "one hundred sixty-two million, eight hundred twenty thousand, one hundred fifty-nine".