159999841 has 4 divisors (see below), whose sum is σ = 160176384. Its totient is φ = 159823300.

The previous prime is 159999811. The next prime is 159999871. The reversal of 159999841 is 148999951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 148999951 = 17 ⋅8764703.

It is an interprime number because it is at equal distance from previous prime (159999811) and next prime (159999871).

It is a cyclic number.

It is not a de Polignac number, because 159999841 - 2²⁵ = 126445409 is a prime.

It is a deceptive number, since it divides R_159999840.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (159999811) 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 3 ways as a sum of consecutive naturals, for example, 86905 + ... + 88726.

It is an arithmetic number, because the mean of its divisors is an integer number (40044096).

Almost surely, 2^159999841 is an apocalyptic number.

It is an amenable number.

159999841 is a deficient number, since it is larger than the sum of its proper divisors (176543).

159999841 is an equidigital number, since it uses as much as digits as its factorization.

159999841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176542.

The product of its digits is 1049760, while the sum is 55.

The square root of 159999841 is about 12649.1043556451. The cubic root of 159999841 is about 542.8833434888.

It can be divided in two parts, 159 and 999841, that added together give a 6-th power (1000000 = 10⁶).

The spelling of 159999841 in words is "one hundred fifty-nine million, nine hundred ninety-nine thousand, eight hundred forty-one".