158471017 has 2 divisors, whose sum is σ = 158471018. Its totient is φ = 158471016.

The previous prime is 158471011. The next prime is 158471021. The reversal of 158471017 is 710174851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93006736 + 65464281 = 9644^2 + 8091^2 .

It is an emirp because it is prime and its reverse (710174851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158471017 - 2³ = 158471009 is a prime.

It is a super-2 number, since 2×158471017² = 50226126458028578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (158471011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79235508 + 79235509.

It is an arithmetic number, because the mean of its divisors is an integer number (79235509).

Almost surely, 2^158471017 is an apocalyptic number.

It is an amenable number.

158471017 is a deficient number, since it is larger than the sum of its proper divisors (1).

158471017 is an equidigital number, since it uses as much as digits as its factorization.

158471017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7840, while the sum is 34.

The square root of 158471017 is about 12588.5271974127. The cubic root of 158471017 is about 541.1486944399.

The spelling of 158471017 in words is "one hundred fifty-eight million, four hundred seventy-one thousand, seventeen".