159741823 has 2 divisors, whose sum is σ = 159741824. Its totient is φ = 159741822.

The previous prime is 159741811. The next prime is 159741833. The reversal of 159741823 is 328147951.

It is a strong prime.

It is an emirp because it is prime and its reverse (328147951) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159741823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159741833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79870911 + 79870912.

It is an arithmetic number, because the mean of its divisors is an integer number (79870912).

Almost surely, 2^159741823 is an apocalyptic number.

159741823 is a deficient number, since it is larger than the sum of its proper divisors (1).

159741823 is an equidigital number, since it uses as much as digits as its factorization.

159741823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 40.

The square root of 159741823 is about 12638.9011785044. The cubic root of 159741823 is about 542.5913660382.

The spelling of 159741823 in words is "one hundred fifty-nine million, seven hundred forty-one thousand, eight hundred twenty-three".