159554971 has 2 divisors, whose sum is σ = 159554972. Its totient is φ = 159554970.

The previous prime is 159554953. The next prime is 159554981. The reversal of 159554971 is 179455951.

159554971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 159554971 - 2²¹ = 157457819 is a prime.

It is not a weakly prime, because it can be changed into another prime (159554921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79777485 + 79777486.

It is an arithmetic number, because the mean of its divisors is an integer number (79777486).

Almost surely, 2^159554971 is an apocalyptic number.

159554971 is a deficient number, since it is larger than the sum of its proper divisors (1).

159554971 is an equidigital number, since it uses as much as digits as its factorization.

159554971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 283500, while the sum is 46.

The square root of 159554971 is about 12631.5070755631. The cubic root of 159554971 is about 542.3797248707.

The spelling of 159554971 in words is "one hundred fifty-nine million, five hundred fifty-four thousand, nine hundred seventy-one".