159440771 has 8 divisors (see below), whose sum is σ = 184938240. Its totient is φ = 134623368.

The previous prime is 159440747. The next prime is 159440783. The reversal of 159440771 is 177044951.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 159440771 - 2⁶ = 159440707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159440711) 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 7 ways as a sum of consecutive naturals, for example, 169511 + ... + 170448.

It is an arithmetic number, because the mean of its divisors is an integer number (23117280).

Almost surely, 2^159440771 is an apocalyptic number.

159440771 is a deficient number, since it is larger than the sum of its proper divisors (25497469).

159440771 is an equidigital number, since it uses as much as digits as its factorization.

159440771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340033.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 159440771 is about 12626.9858240199. The cubic root of 159440771 is about 542.2502928894.

The spelling of 159440771 in words is "one hundred fifty-nine million, four hundred forty thousand, seven hundred seventy-one".