159475961 has 2 divisors, whose sum is σ = 159475962. Its totient is φ = 159475960.

The previous prime is 159475931. The next prime is 159475991. The reversal of 159475961 is 169574951.

It is a balanced prime because it is at equal distance from previous prime (159475931) and next prime (159475991).

It can be written as a sum of positive squares in only one way, i.e., 155475961 + 4000000 = 12469^2 + 2000^2 .

It is a cyclic number.

It is not a de Polignac number, because 159475961 - 2¹⁴ = 159459577 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (159475931) 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, 79737980 + 79737981.

It is an arithmetic number, because the mean of its divisors is an integer number (79737981).

Almost surely, 2^159475961 is an apocalyptic number.

It is an amenable number.

159475961 is a deficient number, since it is larger than the sum of its proper divisors (1).

159475961 is an equidigital number, since it uses as much as digits as its factorization.

159475961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 47.

The square root of 159475961 is about 12628.3791913293. The cubic root of 159475961 is about 542.2901831132.

The spelling of 159475961 in words is "one hundred fifty-nine million, four hundred seventy-five thousand, nine hundred sixty-one".