158965871 has 2 divisors, whose sum is σ = 158965872. Its totient is φ = 158965870.

The previous prime is 158965853. The next prime is 158965889. The reversal of 158965871 is 178569851.

It is a balanced prime because it is at equal distance from previous prime (158965853) and next prime (158965889).

It is an emirp because it is prime and its reverse (178569851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158965871 - 2¹⁰ = 158964847 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158965841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79482935 + 79482936.

It is an arithmetic number, because the mean of its divisors is an integer number (79482936).

Almost surely, 2^158965871 is an apocalyptic number.

158965871 is a deficient number, since it is larger than the sum of its proper divisors (1).

158965871 is an equidigital number, since it uses as much as digits as its factorization.

158965871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 50.

The square root of 158965871 is about 12608.1668374114. The cubic root of 158965871 is about 541.7113868982.

The spelling of 158965871 in words is "one hundred fifty-eight million, nine hundred sixty-five thousand, eight hundred seventy-one".