158065 has 8 divisors (see below), whose sum is σ = 192168. Its totient is φ = 124800.

The previous prime is 158047. The next prime is 158071. The reversal of 158065 is 560851.

158065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10609 + 147456 = 103^2 + 384^2 .

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

It is not a de Polignac number, because 158065 - 2¹³ = 149873 is a prime.

It is a Duffinian number.

It is a plaindrome in base 7.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349 + ... + 661.

It is an arithmetic number, because the mean of its divisors is an integer number (24021).

2¹⁵⁸⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

158065 is a deficient number, since it is larger than the sum of its proper divisors (34103).

158065 is a wasteful number, since it uses less digits than its factorization.

158065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 158065 is about 397.5738925030. The cubic root of 158065 is about 54.0686141971.

The spelling of 158065 in words is "one hundred fifty-eight thousand, sixty-five".