159220673 has 2 divisors, whose sum is σ = 159220674. Its totient is φ = 159220672.

The previous prime is 159220667. The next prime is 159220687. The reversal of 159220673 is 376022951.

159220673 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., 154455184 + 4765489 = 12428^2 + 2183^2 .

It is a cyclic number.

It is not a de Polignac number, because 159220673 - 2¹⁶ = 159155137 is a prime.

It is not a weakly prime, because it can be changed into another prime (159220613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79610336 + 79610337.

It is an arithmetic number, because the mean of its divisors is an integer number (79610337).

Almost surely, 2^159220673 is an apocalyptic number.

It is an amenable number.

159220673 is a deficient number, since it is larger than the sum of its proper divisors (1).

159220673 is an equidigital number, since it uses as much as digits as its factorization.

159220673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 159220673 is about 12618.2674325757. The cubic root of 159220673 is about 542.0006637973. Note that the first 3 decimals are identical.

The spelling of 159220673 in words is "one hundred fifty-nine million, two hundred twenty thousand, six hundred seventy-three".