159455081 has 2 divisors, whose sum is σ = 159455082. Its totient is φ = 159455080.

The previous prime is 159455071. The next prime is 159455143. The reversal of 159455081 is 180554951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144120025 + 15335056 = 12005^2 + 3916^2 .

It is a cyclic number.

It is not a de Polignac number, because 159455081 - 2⁶ = 159455017 is a prime.

It is a super-2 number, since 2×159455081² = 50851845713433122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (159455071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79727540 + 79727541.

It is an arithmetic number, because the mean of its divisors is an integer number (79727541).

Almost surely, 2^159455081 is an apocalyptic number.

It is an amenable number.

159455081 is a deficient number, since it is larger than the sum of its proper divisors (1).

159455081 is an equidigital number, since it uses as much as digits as its factorization.

159455081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 38.

The square root of 159455081 is about 12627.5524548505. The cubic root of 159455081 is about 542.2665149416.

The spelling of 159455081 in words is "one hundred fifty-nine million, four hundred fifty-five thousand, eighty-one".