126516003 has 16 divisors (see below), whose sum is σ = 178974720. Its totient is φ = 79271136.

The previous prime is 126515981. The next prime is 126516017. The reversal of 126516003 is 300615621.

It is not a de Polignac number, because 126516003 - 2⁸ = 126515747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126516073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1500 + ... + 15977.

It is an arithmetic number, because the mean of its divisors is an integer number (11185920).

Almost surely, 2^126516003 is an apocalyptic number.

126516003 is a deficient number, since it is larger than the sum of its proper divisors (52458717).

126516003 is a wasteful number, since it uses less digits than its factorization.

126516003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17626.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 126516003 is about 11247.9332768291. The cubic root of 126516003 is about 502.0132203415.

The spelling of 126516003 in words is "one hundred twenty-six million, five hundred sixteen thousand, three".