159654161 has 2 divisors, whose sum is σ = 159654162. Its totient is φ = 159654160.

The previous prime is 159654107. The next prime is 159654241. The reversal of 159654161 is 161456951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134212225 + 25441936 = 11585^2 + 5044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159654161 is a prime.

It is a super-2 number, since 2×159654161² = 50978902249227842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (159651161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79827080 + 79827081.

It is an arithmetic number, because the mean of its divisors is an integer number (79827081).

Almost surely, 2^159654161 is an apocalyptic number.

It is an amenable number.

159654161 is a deficient number, since it is larger than the sum of its proper divisors (1).

159654161 is an equidigital number, since it uses as much as digits as its factorization.

159654161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 38.

The square root of 159654161 is about 12635.4327587147. The cubic root of 159654161 is about 542.4920947123.

The spelling of 159654161 in words is "one hundred fifty-nine million, six hundred fifty-four thousand, one hundred sixty-one".