126458 has 8 divisors (see below), whose sum is σ = 193428. Its totient is φ = 61984.

The previous prime is 126457. The next prime is 126461. The reversal of 126458 is 854621.

It can be written as a sum of positive squares in 2 ways, for example, as 124609 + 1849 = 353^2 + 43^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (126457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491 + ... + 702.

2¹²⁶⁴⁵⁸ is an apocalyptic number.

126458 is a deficient number, since it is larger than the sum of its proper divisors (66970).

126458 is a wasteful number, since it uses less digits than its factorization.

126458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248.

The product of its digits is 1920, while the sum is 26.

The square root of 126458 is about 355.6093362104. The cubic root of 126458 is about 50.1936490328.

The spelling of 126458 in words is "one hundred twenty-six thousand, four hundred fifty-eight".