158117 has 8 divisors (see below), whose sum is σ = 171072. Its totient is φ = 145600.

The previous prime is 158113. The next prime is 158129. The reversal of 158117 is 711851.

158117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 158117 - 2² = 158113 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 158092 and 158101.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 158117.

It is not an unprimeable number, because it can be changed into a prime (158113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1142 + ... + 1272.

It is an arithmetic number, because the mean of its divisors is an integer number (21384).

2¹⁵⁸¹¹⁷ is an apocalyptic number.

158117 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

158117 is a deficient number, since it is larger than the sum of its proper divisors (12955).

158117 is a wasteful number, since it uses less digits than its factorization.

158117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219.

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

The square root of 158117 is about 397.6392837736. The cubic root of 158117 is about 54.0745426857.

Adding to 158117 its reverse (711851), we get a palindrome (869968).

The spelling of 158117 in words is "one hundred fifty-eight thousand, one hundred seventeen".