159698941 has 2 divisors, whose sum is σ = 159698942. Its totient is φ = 159698940.

The previous prime is 159698939. The next prime is 159698983. The reversal of 159698941 is 149896951.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82628100 + 77070841 = 9090^2 + 8779^2 .

It is an emirp because it is prime and its reverse (149896951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 159698941 - 2¹ = 159698939 is a prime.

Together with 159698939, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159698741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79849470 + 79849471.

It is an arithmetic number, because the mean of its divisors is an integer number (79849471).

Almost surely, 2^159698941 is an apocalyptic number.

It is an amenable number.

159698941 is a deficient number, since it is larger than the sum of its proper divisors (1).

159698941 is an equidigital number, since it uses as much as digits as its factorization.

159698941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 52.

The square root of 159698941 is about 12637.2046355197. The cubic root of 159698941 is about 542.5428095929.

The spelling of 159698941 in words is "one hundred fifty-nine million, six hundred ninety-eight thousand, nine hundred forty-one".