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71159 = 116469
BaseRepresentation
bin10001010111110111
310121121112
4101113313
54234114
61305235
7414314
oct212767
9117545
1071159
1149510
123521b
132650a
141bd0b
151613e
hex115f7

71159 has 4 divisors (see below), whose sum is σ = 77640. Its totient is φ = 64680.

The previous prime is 71153. The next prime is 71161. The reversal of 71159 is 95117.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95117 = 118647.

It is not a de Polignac number, because 71159 - 24 = 71143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71153) 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 3 ways as a sum of consecutive naturals, for example, 3224 + ... + 3245.

It is an arithmetic number, because the mean of its divisors is an integer number (19410).

271159 is an apocalyptic number.

71159 is a deficient number, since it is larger than the sum of its proper divisors (6481).

71159 is a wasteful number, since it uses less digits than its factorization.

71159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6480.

The product of its digits is 315, while the sum is 23.

The square root of 71159 is about 266.7564432212. The cubic root of 71159 is about 41.4390647787.

The spelling of 71159 in words is "seventy-one thousand, one hundred fifty-nine".

Divisors: 1 11 6469 71159