126403033 has 2 divisors, whose sum is σ = 126403034. Its totient is φ = 126403032.

The previous prime is 126403031. The next prime is 126403087. The reversal of 126403033 is 330304621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118635664 + 7767369 = 10892^2 + 2787^2 .

It is a cyclic number.

It is not a de Polignac number, because 126403033 - 2¹ = 126403031 is a prime.

Together with 126403031, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 126402995 and 126403013.

It is not a weakly prime, because it can be changed into another prime (126403031) 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, 63201516 + 63201517.

It is an arithmetic number, because the mean of its divisors is an integer number (63201517).

Almost surely, 2^126403033 is an apocalyptic number.

It is an amenable number.

126403033 is a deficient number, since it is larger than the sum of its proper divisors (1).

126403033 is an equidigital number, since it uses as much as digits as its factorization.

126403033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 126403033 is about 11242.9103438567. The cubic root of 126403033 is about 501.8637548704.

Adding to 126403033 its reverse (330304621), we get a palindrome (456707654).

The spelling of 126403033 in words is "one hundred twenty-six million, four hundred three thousand, thirty-three".