158546 has 4 divisors (see below), whose sum is σ = 237822. Its totient is φ = 79272.

The previous prime is 158537. The next prime is 158551. The reversal of 158546 is 645851.

It is a happy number.

158546 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.

It can be written as a sum of positive squares in only one way, i.e., 151321 + 7225 = 389^2 + 85^2 .

It is an unprimeable number.

158546 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39635 + ... + 39638.

2¹⁵⁸⁵⁴⁶ is an apocalyptic number.

158546 is a deficient number, since it is larger than the sum of its proper divisors (79276).

158546 is an equidigital number, since it uses as much as digits as its factorization.

158546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79275.

The product of its digits is 4800, while the sum is 29.

The square root of 158546 is about 398.1783519982. The cubic root of 158546 is about 54.1234031925.

It can be divided in two parts, 158 and 546, that multiplied together give a palindrome (86268).

The spelling of 158546 in words is "one hundred fifty-eight thousand, five hundred forty-six".