126128 has 10 divisors (see below), whose sum is σ = 244404. Its totient is φ = 63056.

The previous prime is 126127. The next prime is 126131. The reversal of 126128 is 821621.

It is not an unprimeable number, because it can be changed into a prime (126127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3926 + ... + 3957.

2¹²⁶¹²⁸ is an apocalyptic number.

It is an amenable number.

126128 is a deficient number, since it is larger than the sum of its proper divisors (118276).

126128 is an equidigital number, since it uses as much as digits as its factorization.

126128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7891 (or 7885 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

The square root of 126128 is about 355.1450407932. The cubic root of 126128 is about 50.1499498513.

Adding to 126128 its reverse (821621), we get a palindrome (947749).

It can be divided in two parts, 12 and 6128, that multiplied together give a triangular number (73536 = T₃₈₃).

The spelling of 126128 in words is "one hundred twenty-six thousand, one hundred twenty-eight".