126203 has 12 divisors (see below), whose sum is σ = 159600. Its totient is φ = 97680.

The previous prime is 126199. The next prime is 126211. The reversal of 126203 is 302621.

It is not a de Polignac number, because 126203 - 2² = 126199 is a prime.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (126223) 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 11 ways as a sum of consecutive naturals, for example, 773 + ... + 921.

It is an arithmetic number, because the mean of its divisors is an integer number (13300).

2¹²⁶²⁰³ is an apocalyptic number.

126203 is a deficient number, since it is larger than the sum of its proper divisors (33397).

126203 is a wasteful number, since it uses less digits than its factorization.

126203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 126203 is about 355.2506157630. The cubic root of 126203 is about 50.1598881705.

Adding to 126203 its reverse (302621), we get a palindrome (428824).

The spelling of 126203 in words is "one hundred twenty-six thousand, two hundred three".