126858 has 8 divisors (see below), whose sum is σ = 253728. Its totient is φ = 42284.

The previous prime is 126857. The next prime is 126859. The reversal of 126858 is 858621.

It is an interprime number because it is at equal distance from previous prime (126857) and next prime (126859).

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

126858 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126851) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 10566 + ... + 10577.

It is an arithmetic number, because the mean of its divisors is an integer number (31716).

2¹²⁶⁸⁵⁸ is an apocalyptic number.

126858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126858 is a wasteful number, since it uses less digits than its factorization.

126858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21148.

The product of its digits is 3840, while the sum is 30.

The square root of 126858 is about 356.1713070981. The cubic root of 126858 is about 50.2465159338.

It can be divided in two parts, 1268 and 58, that added together give a triangular number (1326 = T₅₁).

The spelling of 126858 in words is "one hundred twenty-six thousand, eight hundred fifty-eight".