126158 has 4 divisors (see below), whose sum is σ = 189240. Its totient is φ = 63078.

The previous prime is 126151. The next prime is 126173. The reversal of 126158 is 851621.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126151) by changing a digit.

126158 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31538 + ... + 31541.

It is an arithmetic number, because the mean of its divisors is an integer number (47310).

2¹²⁶¹⁵⁸ is an apocalyptic number.

126158 is a deficient number, since it is larger than the sum of its proper divisors (63082).

126158 is an equidigital number, since it uses as much as digits as its factorization.

126158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63081.

The product of its digits is 480, while the sum is 23.

The square root of 126158 is about 355.1872745468. The cubic root of 126158 is about 50.1539256516.

Adding to 126158 its reverse (851621), we get a palindrome (977779).

The spelling of 126158 in words is "one hundred twenty-six thousand, one hundred fifty-eight".