126838 has 4 divisors (see below), whose sum is σ = 190260. Its totient is φ = 63418.

The previous prime is 126827. The next prime is 126839. The reversal of 126838 is 838621.

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

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126839) by changing a digit.

126838 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 (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31708 + ... + 31711.

It is an arithmetic number, because the mean of its divisors is an integer number (47565).

2¹²⁶⁸³⁸ is an apocalyptic number.

126838 is a deficient number, since it is larger than the sum of its proper divisors (63422).

126838 is an equidigital number, since it uses as much as digits as its factorization.

126838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63421.

The product of its digits is 2304, while the sum is 28.

The square root of 126838 is about 356.1432296142. The cubic root of 126838 is about 50.2438752302.

It can be divided in two parts, 1268 and 38, that multiplied together give a palindrome (48184).

The spelling of 126838 in words is "one hundred twenty-six thousand, eight hundred thirty-eight".