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BaseRepresentation
bin100110100111011011
322000222012
4212213123
520030141
63220135
71226066
oct464733
9260865
10158171
11a8922
127764b
1356cc0
14418dd
1531ceb
hex269db

158171 has 8 divisors (see below), whose sum is σ = 178080. Its totient is φ = 139656.

The previous prime is 158161. The next prime is 158189. The reversal of 158171 is 171851.

It is a de Polignac number, because none of the positive numbers 2k-158171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6866 + ... + 6888.

It is an arithmetic number, because the mean of its divisors is an integer number (22260).

2158171 is an apocalyptic number.

158171 is a deficient number, since it is larger than the sum of its proper divisors (19909).

158171 is an frugal number, since it uses more digits than its factorization.

158171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 36 counting only the distinct ones).

The product of its digits is 280, while the sum is 23.

The square root of 158171 is about 397.7071787132. The cubic root of 158171 is about 54.0806978176.

The spelling of 158171 in words is "one hundred fifty-eight thousand, one hundred seventy-one".

Divisors: 1 13 23 299 529 6877 12167 158171