126343503 has 64 divisors (see below), whose sum is σ = 225308160. Its totient is φ = 68947200.

The previous prime is 126343489. The next prime is 126343543. The reversal of 126343503 is 305343621.

It is a happy number.

126343503 is a `hidden beast` number, since 126 + 34 + 3 + 503 = 666.

It is not a de Polignac number, because 126343503 - 2⁴ = 126343487 is a prime.

It is a super-2 number, since 2×126343503² = 31925361500622018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126343543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 165643 + ... + 166403.

It is an arithmetic number, because the mean of its divisors is an integer number (3520440).

Almost surely, 2^126343503 is an apocalyptic number.

126343503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

126343503 is a deficient number, since it is larger than the sum of its proper divisors (98964657).

126343503 is a wasteful number, since it uses less digits than its factorization.

126343503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 831 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 126343503 is about 11240.2625859007. The cubic root of 126343503 is about 501.7849576034.

The spelling of 126343503 in words is "one hundred twenty-six million, three hundred forty-three thousand, five hundred three".