159747943 has 2 divisors, whose sum is σ = 159747944. Its totient is φ = 159747942.

The previous prime is 159747923. The next prime is 159748003. The reversal of 159747943 is 349747951.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 159747943 - 2⁹ = 159747431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159747923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79873971 + 79873972.

It is an arithmetic number, because the mean of its divisors is an integer number (79873972).

Almost surely, 2^159747943 is an apocalyptic number.

159747943 is a deficient number, since it is larger than the sum of its proper divisors (1).

159747943 is an equidigital number, since it uses as much as digits as its factorization.

159747943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 49.

The square root of 159747943 is about 12639.1432858402. The cubic root of 159747943 is about 542.5982951707.

The spelling of 159747943 in words is "one hundred fifty-nine million, seven hundred forty-seven thousand, nine hundred forty-three".