158171671 has 8 divisors (see below), whose sum is σ = 180893600. Its totient is φ = 135481248.

The previous prime is 158171669. The next prime is 158171681. The reversal of 158171671 is 176171851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 158171671 - 2¹ = 158171669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 158171671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158171681) 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 in 7 ways as a sum of consecutive naturals, for example, 4105 + ... + 18253.

It is an arithmetic number, because the mean of its divisors is an integer number (22611700).

Almost surely, 2^158171671 is an apocalyptic number.

158171671 is a deficient number, since it is larger than the sum of its proper divisors (22721929).

158171671 is a wasteful number, since it uses less digits than its factorization.

158171671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15753.

The product of its digits is 11760, while the sum is 37.

The square root of 158171671 is about 12576.6319418197. The cubic root of 158171671 is about 540.8077429198.

The spelling of 158171671 in words is "one hundred fifty-eight million, one hundred seventy-one thousand, six hundred seventy-one".