126503317 has 2 divisors, whose sum is σ = 126503318. Its totient is φ = 126503316.

The previous prime is 126503231. The next prime is 126503347. The reversal of 126503317 is 713305621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109537156 + 16966161 = 10466^2 + 4119^2 .

It is a cyclic number.

It is not a de Polignac number, because 126503317 - 2¹⁵ = 126470549 is a prime.

It is a super-3 number, since 3×126503317³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126503347) 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 as a sum of consecutive naturals, namely, 63251658 + 63251659.

It is an arithmetic number, because the mean of its divisors is an integer number (63251659).

Almost surely, 2^126503317 is an apocalyptic number.

It is an amenable number.

126503317 is a deficient number, since it is larger than the sum of its proper divisors (1).

126503317 is an equidigital number, since it uses as much as digits as its factorization.

126503317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 126503317 is about 11247.3693368716. The cubic root of 126503317 is about 501.9964405075.

Adding to 126503317 its reverse (713305621), we get a palindrome (839808938).

The spelling of 126503317 in words is "one hundred twenty-six million, five hundred three thousand, three hundred seventeen".