871220159 has 2 divisors, whose sum is σ = 871220160. Its totient is φ = 871220158.

The previous prime is 871220099. The next prime is 871220173. The reversal of 871220159 is 951022178.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 871220159 - 2²⁸ = 602784703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871220359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435610079 + 435610080.

It is an arithmetic number, because the mean of its divisors is an integer number (435610080).

Almost surely, 2^871220159 is an apocalyptic number.

871220159 is a deficient number, since it is larger than the sum of its proper divisors (1).

871220159 is an equidigital number, since it uses as much as digits as its factorization.

871220159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 871220159 is about 29516.4387926457. The cubic root of 871220159 is about 955.0863509357.

The spelling of 871220159 in words is "eight hundred seventy-one million, two hundred twenty thousand, one hundred fifty-nine".