71158 has 8 divisors (see below), whose sum is σ = 109152. Its totient is φ = 34776.

The previous prime is 71153. The next prime is 71161. The reversal of 71158 is 85117.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71153) by changing a digit.

71158 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285 + ... + 472.

It is an arithmetic number, because the mean of its divisors is an integer number (13644).

2⁷¹¹⁵⁸ is an apocalyptic number.

71158 is a deficient number, since it is larger than the sum of its proper divisors (37994).

71158 is a wasteful number, since it uses less digits than its factorization.

71158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806.

The product of its digits is 280, while the sum is 22.

The square root of 71158 is about 266.7545688456. The cubic root of 71158 is about 41.4388706629.

The spelling of 71158 in words is "seventy-one thousand, one hundred fifty-eight".