159407977 has 2 divisors, whose sum is σ = 159407978. Its totient is φ = 159407976.

The previous prime is 159407953. The next prime is 159408019. The reversal of 159407977 is 779704951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 159289641 + 118336 = 12621^2 + 344^2 .

It is a cyclic number.

It is not a de Polignac number, because 159407977 - 2¹¹ = 159405929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 159407977.

It is not a weakly prime, because it can be changed into another prime (159407947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79703988 + 79703989.

It is an arithmetic number, because the mean of its divisors is an integer number (79703989).

Almost surely, 2^159407977 is an apocalyptic number.

It is an amenable number.

159407977 is a deficient number, since it is larger than the sum of its proper divisors (1).

159407977 is an equidigital number, since it uses as much as digits as its factorization.

159407977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 555660, while the sum is 49.

The square root of 159407977 is about 12625.6871892187. The cubic root of 159407977 is about 542.2131134082.

The spelling of 159407977 in words is "one hundred fifty-nine million, four hundred seven thousand, nine hundred seventy-seven".