126003 has 8 divisors (see below), whose sum is σ = 170128. Its totient is φ = 82944.

The previous prime is 126001. The next prime is 126011. The reversal of 126003 is 300621.

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

It is not a de Polignac number, because 126003 - 2¹ = 126001 is a prime.

It is a Duffinian number.

126003 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 126003.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 126003.

It is not an unprimeable number, because it can be changed into a prime (126001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75 + ... + 507.

It is an arithmetic number, because the mean of its divisors is an integer number (21266).

2¹²⁶⁰⁰³ is an apocalyptic number.

126003 is a deficient number, since it is larger than the sum of its proper divisors (44125).

126003 is an equidigital number, since it uses as much as digits as its factorization.

126003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 126003 is about 354.9690127321. The cubic root of 126003 is about 50.1333772273.

Adding to 126003 its reverse (300621), we get a palindrome (426624).

The spelling of 126003 in words is "one hundred twenty-six thousand, three".