158045 has 8 divisors (see below), whose sum is σ = 192696. Its totient is φ = 124416.

The previous prime is 158029. The next prime is 158047. The reversal of 158045 is 540851.

Added to its reverse (540851) it gives a square (698896 = 836²).

It can be written as a sum of positive squares in 4 ways, for example, as 2809 + 155236 = 53^2 + 394^2 .

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 158045 - 2⁴ = 158029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 158045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158047) 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, 149 + ... + 581.

It is an arithmetic number, because the mean of its divisors is an integer number (24087).

2¹⁵⁸⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

158045 is a deficient number, since it is larger than the sum of its proper divisors (34651).

158045 is an equidigital number, since it uses as much as digits as its factorization.

158045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 158045 is about 397.5487391503. The cubic root of 158045 is about 54.0663336629.

Adding to 158045 its reverse (540851), we get a palindrome (698896).

The spelling of 158045 in words is "one hundred fifty-eight thousand, forty-five".