126045003 has 24 divisors (see below), whose sum is σ = 195974208. Its totient is φ = 71850576.

The previous prime is 126044999. The next prime is 126045013. The reversal of 126045003 is 300540621.

It is a happy number.

It is not a de Polignac number, because 126045003 - 2² = 126044999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (126045013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82000 + ... + 83522.

It is an arithmetic number, because the mean of its divisors is an integer number (8165592).

Almost surely, 2^126045003 is an apocalyptic number.

126045003 is a deficient number, since it is larger than the sum of its proper divisors (69929205).

126045003 is a wasteful number, since it uses less digits than its factorization.

126045003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103 (or 2096 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 126045003 is about 11226.9765743053. The cubic root of 126045003 is about 501.3894724890.

Adding to 126045003 its reverse (300540621), we get a palindrome (426585624).

The spelling of 126045003 in words is "one hundred twenty-six million, forty-five thousand, three".