126786133 has 2 divisors, whose sum is σ = 126786134. Its totient is φ = 126786132.

The previous prime is 126786091. The next prime is 126786197. The reversal of 126786133 is 331687621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117983044 + 8803089 = 10862^2 + 2967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126786133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126786092 and 126786101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126786433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63393066 + 63393067.

It is an arithmetic number, because the mean of its divisors is an integer number (63393067).

Almost surely, 2^126786133 is an apocalyptic number.

It is an amenable number.

126786133 is a deficient number, since it is larger than the sum of its proper divisors (1).

126786133 is an equidigital number, since it uses as much as digits as its factorization.

126786133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 126786133 is about 11259.9348577157. The cubic root of 126786133 is about 502.3702566781.

The spelling of 126786133 in words is "one hundred twenty-six million, seven hundred eighty-six thousand, one hundred thirty-three".