158773 has 4 divisors (see below), whose sum is σ = 159840. Its totient is φ = 157708.

The previous prime is 158771. The next prime is 158777. The reversal of 158773 is 377851.

158773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 158773 - 2¹ = 158771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265 + ... + 622.

It is an arithmetic number, because the mean of its divisors is an integer number (39960).

2¹⁵⁸⁷⁷³ is an apocalyptic number.

It is an amenable number.

158773 is a deficient number, since it is larger than the sum of its proper divisors (1067).

158773 is an equidigital number, since it uses as much as digits as its factorization.

158773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066.

The product of its digits is 5880, while the sum is 31.

The square root of 158773 is about 398.4632981844. The cubic root of 158773 is about 54.1492214696.

The spelling of 158773 in words is "one hundred fifty-eight thousand, seven hundred seventy-three".