126503033 has 12 divisors (see below), whose sum is σ = 133751808. Its totient is φ = 119521080.

The previous prime is 126503029. The next prime is 126503057. The reversal of 126503033 is 330305621.

It is not a de Polignac number, because 126503033 - 2² = 126503029 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126503063) 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, 56216 + ... + 58422.

It is an arithmetic number, because the mean of its divisors is an integer number (11145984).

Almost surely, 2^126503033 is an apocalyptic number.

It is an amenable number.

126503033 is a deficient number, since it is larger than the sum of its proper divisors (7248775).

126503033 is an equidigital number, since it uses as much as digits as its factorization.

126503033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324 (or 2281 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 126503033 is about 11247.3567116901. The cubic root of 126503033 is about 501.9960648464.

Adding to 126503033 its reverse (330305621), we get a palindrome (456808654).

The spelling of 126503033 in words is "one hundred twenty-six million, five hundred three thousand, thirty-three".