158365 has 8 divisors (see below), whose sum is σ = 200160. Its totient is φ = 119952.

The previous prime is 158363. The next prime is 158371. The reversal of 158365 is 563851.

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 158365 - 2¹ = 158363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158363) 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, 739 + ... + 928.

It is an arithmetic number, because the mean of its divisors is an integer number (25020).

2¹⁵⁸³⁶⁵ is an apocalyptic number.

It is an amenable number.

158365 is a deficient number, since it is larger than the sum of its proper divisors (41795).

158365 is a wasteful number, since it uses less digits than its factorization.

158365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691.

The product of its digits is 3600, while the sum is 28.

The square root of 158365 is about 397.9510020090. The cubic root of 158365 is about 54.1027991486.

The spelling of 158365 in words is "one hundred fifty-eight thousand, three hundred sixty-five".