126550 has 12 divisors (see below), whose sum is σ = 235476. Its totient is φ = 50600.

The previous prime is 126547. The next prime is 126551. The reversal of 126550 is 55621.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126551) 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 5 ways as a sum of consecutive naturals, for example, 1216 + ... + 1315.

It is an arithmetic number, because the mean of its divisors is an integer number (19623).

2¹²⁶⁵⁵⁰ is an apocalyptic number.

126550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126550 is a deficient number, since it is larger than the sum of its proper divisors (108926).

126550 is a wasteful number, since it uses less digits than its factorization.

126550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543 (or 2538 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 126550 is about 355.7386681259. The cubic root of 126550 is about 50.2058182809.

It can be divided in two parts, 126 and 550, that added together give a palindrome (676).

The spelling of 126550 in words is "one hundred twenty-six thousand, five hundred fifty".