158998871 has 2 divisors, whose sum is σ = 158998872. Its totient is φ = 158998870.

The previous prime is 158998849. The next prime is 158998877. The reversal of 158998871 is 178899851.

158998871 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 158998871 - 2¹⁰ = 158997847 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158998877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79499435 + 79499436.

It is an arithmetic number, because the mean of its divisors is an integer number (79499436).

Almost surely, 2^158998871 is an apocalyptic number.

158998871 is a deficient number, since it is larger than the sum of its proper divisors (1).

158998871 is an equidigital number, since it uses as much as digits as its factorization.

158998871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 56.

The square root of 158998871 is about 12609.4754450770. The cubic root of 158998871 is about 541.7488692391.

The spelling of 158998871 in words is "one hundred fifty-eight million, nine hundred ninety-eight thousand, eight hundred seventy-one".