159191941 has 2 divisors, whose sum is σ = 159191942. Its totient is φ = 159191940.

The previous prime is 159191939. The next prime is 159191951. The reversal of 159191941 is 149191951.

159191941 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137569441 + 21622500 = 11729^2 + 4650^2 .

It is a cyclic number.

It is not a de Polignac number, because 159191941 - 2¹ = 159191939 is a prime.

Together with 159191939, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_8931658 and since 159191941 and 8931658 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 159191894 and 159191903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159191911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79595970 + 79595971.

It is an arithmetic number, because the mean of its divisors is an integer number (79595971).

Almost surely, 2^159191941 is an apocalyptic number.

It is an amenable number.

159191941 is a deficient number, since it is larger than the sum of its proper divisors (1).

159191941 is an equidigital number, since it uses as much as digits as its factorization.

159191941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 40.

The square root of 159191941 is about 12617.1288730836. The cubic root of 159191941 is about 541.9680597818.

The spelling of 159191941 in words is "one hundred fifty-nine million, one hundred ninety-one thousand, nine hundred forty-one".