159397477 has 2 divisors, whose sum is σ = 159397478. Its totient is φ = 159397476.

The previous prime is 159397451. The next prime is 159397507. The reversal of 159397477 is 774793951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116769636 + 42627841 = 10806^2 + 6529^2 .

It is a cyclic number.

It is not a de Polignac number, because 159397477 - 2¹⁹ = 158873189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159397417) 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, 79698738 + 79698739.

It is an arithmetic number, because the mean of its divisors is an integer number (79698739).

Almost surely, 2^159397477 is an apocalyptic number.

It is an amenable number.

159397477 is a deficient number, since it is larger than the sum of its proper divisors (1).

159397477 is an equidigital number, since it uses as much as digits as its factorization.

159397477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1666980, while the sum is 52.

The square root of 159397477 is about 12625.2713634203. The cubic root of 159397477 is about 542.2012081849.

The spelling of 159397477 in words is "one hundred fifty-nine million, three hundred ninety-seven thousand, four hundred seventy-seven".