159764971 has 2 divisors, whose sum is σ = 159764972. Its totient is φ = 159764970.

The previous prime is 159764959. The next prime is 159764993. The reversal of 159764971 is 179467951.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 159764971 - 2²¹ = 157667819 is a prime.

It is not a weakly prime, because it can be changed into another prime (159764911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79882485 + 79882486.

It is an arithmetic number, because the mean of its divisors is an integer number (79882486).

Almost surely, 2^159764971 is an apocalyptic number.

159764971 is a deficient number, since it is larger than the sum of its proper divisors (1).

159764971 is an equidigital number, since it uses as much as digits as its factorization.

159764971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 49.

The square root of 159764971 is about 12639.8168894965. The cubic root of 159764971 is about 542.6175735316.

The spelling of 159764971 in words is "one hundred fifty-nine million, seven hundred sixty-four thousand, nine hundred seventy-one".