159680819 has 2 divisors, whose sum is σ = 159680820. Its totient is φ = 159680818.

The previous prime is 159680771. The next prime is 159680861. The reversal of 159680819 is 918086951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159680819 - 2¹⁶ = 159615283 is a prime.

It is a super-2 number, since 2×159680819² = 50995927913021522, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (159680869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79840409 + 79840410.

It is an arithmetic number, because the mean of its divisors is an integer number (79840410).

Almost surely, 2^159680819 is an apocalyptic number.

159680819 is a deficient number, since it is larger than the sum of its proper divisors (1).

159680819 is an equidigital number, since it uses as much as digits as its factorization.

159680819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 47.

The square root of 159680819 is about 12636.4876053435. The cubic root of 159680819 is about 542.5222869506.

The spelling of 159680819 in words is "one hundred fifty-nine million, six hundred eighty thousand, eight hundred nineteen".